"People say we are going to win three or four titles and the day we drop one competition they say it's a big failure for Manchester City", the former Spain global told BBC Sport.
The Red Devils were handed a red card following a reckless challenge by Victor Lindelof on 83 minutes, but the Video Assistant Referee overturned decision and the defender was only handed a yellow card.
Championship side Millwall host Premier League side Brighton on Sunday.
Had VAR been applied to non-Premier League stadiums in the FA Cup, the visitors' second and third goals would not have stood.
In reality, the Citizens more than deserved the win.
With the victory, City keeps its bid for the quadruple alive.
Having secured a last-eight spot in the Champions League to go with their League Cup title, City made a strong start as they looked to continue their quest to become the first side to win all four major trophies in an English season.
Guardiola was rueful about the decision in his post-match news conference, saying: "All around Europe there is VAR, here there is not".
City, who last won the FA Cup in 2011, showed their fighting qualities as they survived a scare against Swansea thanks to Sergio Aguero's late victor.
Aguero missed a glorious chance to score seven minutes from time, but the Argentine striker had the final say when he headed the victor two minutes from time.
After falling 2-0 behind in the first-half Pep Guardiola's side completed the ultimate come-back through Bernardo Silva and a Sergio Aguero brace.
"If it is not penalty, and it is offside like the people say, I'm sorry", Guardiola said. "Hopefully, next season this won't happen". "Swansea's stadium could have been equipped for VAR, they were a Premier League team not long ago and they will feel hard done by tonight and rightly so".
In 2010, Sotoudeh was arrested on charges of spreading propaganda against the state and for conspiring to harm state security. Several Members of Parliament in Norway are also alarmed and strongly oppose her imprisonment and especially any lashes.
Felix took to social media today to tweet: 'Just heard the news of the devastating reports from New Zealand Christchurch. Australian Prime Minister Scott Morrison said the gunman responsible for shootings was an Australian-born citizen.
Tensions between Israel and Gaza have been boiling ever since Palestinians began violent protests near Israel's border fence. Witnesses said powerful explosions from the air strikes rocked buildings in Gaza and lit the skies over targeted sites.
Later in the day, it emerged that he used five guns in Friday's attack, including two shotguns and two semi-automatic weapons. Questions have been raised about why Tarrant had not appeared on a watchlist of New Zealand or Australian security agencies.
A draft was presented to the parliament last week but the latest revisions have not been made public since then. However, Parker added that "while the language on criminal liability is positive, it will be hard to enforce".
Police say they are still investigating whether Cali's murder was a mob hit or whether he was killed for some other motive. This photo made available by the Italian Police in 2008 shows Francesco "Franky Boy" Cali.
Facebook said it had deleted the gunman's accounts "shortly after the livestream commenced" after being alerted by police. Downing Street has also demanded United Kingdom news and media companies remove from their websites terrifying footage.
There's also a ton of changes to the base game including the addition of the DOA6 Happy Wedding Costumes Vol.1 set. It's a fast, snappy game, more agile and aggressive than Soul Calibur, with less combo memorisation than Tekken.
However, witnesses have described how many more lives could have been lost, if not for the courage of a worker at Linwood Mosque. The attack on the Al Noor and Linwood mosques has prompted an outpouring of grief and deep shock in this usually peaceful coun.
On Saturday, ESPN's Adam Schefter reported the former Browns QB has signed with the up-start Alliance of American Football League. Teams with the worst records in the league will get the chance to pick him up, according to ESPN.
Volkswagen was founded in 1937, as part of Nazi leader Adolf Hitler's vision to enable German families to own their first auto . Within the Volkswagen Group, "brands with a higher margins have more freedom within the Group to make their own decisions".
Jaguar Land Rover to recall 44,000 cars over CO2
The excessive Carbon dioxide emissions were discovered by the British vehicle certification agency, who then reported it to JLR . Concerned motorists can contact Jaguar Land Rover customers services if they are concerned using the numbers below.
All American diplomats have left Venezuela, says Pompeo
He has also promised an investigation into Guaido for "alleged involvement in the sabotage of the Venezuelan electricity system". Pompeo explained the presence of diplomats in Venezuela at this time has put constraints on USA policy.
Raonic ends lucky loser's run at Indian Wells
Andy Bettles, Svitolina's coach, told his player "She's dying physically" during the break after the fifth game of the set. Little known at the time, Osaka used her Indian Wells victory as a launching pad to beating Serena Williams for the U.S.
Nigel Farage begins 200 mile 'Brexit betrayal' march
One counter-protester, Frank Hindle, said he was there "to point out that not everybody agrees with this crowd". One set off blue and yellow flares, the colours of the European Union , as protesters chanted "exit Brexit ".
Hexo (TSE:HEXO) Stock Rating Reaffirmed by CIBC
Hexo rose 6.63 percent and 5.81 percent in NY and Toronto, to finish with a closing price of US$5.92 and C$7.83. This morning, Hexo Corp HEXO released Q2 2019 numbers and shares are now soaring 6% in pre-market trading.