"If the second was not a penalty and the third offside, I'm sorry", said Pep Guardiola, Manchester City manager. "All around it is there, but here it is not. I know I'll be a failure if I don't win all the titles, I'm sorry", the City boss quipped.
Having already won the League Cup and advanced to the Champions League quarter-finals, City remain in the hunt for an unprecedented clean sweep of all four major trophies.
The technology is in use in the FA Cup and was available at the Liberty Stadium last season, but the Football Association is reported to have opted against equipping the ground with VAR since their relegation to the Championship and Guardiola was rueful.
But while VAR will be used at some FA Cup games, it was not in use in Wales and the decisions were upheld unchecked.
"That seems a bit odd considering we were there for seven years and all the technology is placed here to accommodate it".
Matt Grimes calmly slotted the Swans ahead from the penalty spot, before a stunning move on the break saw the impressive Daniel James ran at the defence to open up the space for Bersant Celina, a former City youngster, to curl a wonderful shot past Ederson and into the top corner.
Guardiola was less impressed with the Swansea fans, who invaded the pitch following the final whistle with substitute Oleksandr Zinchenko appearing to be jostled by one supporter. "We adjusted things and the quality of our players made the difference".
"I don't like to lose games when the decisions are wrong, the referees don't want to make wrong decisions and they must be helped". "It could have gone either way, Congratulations to Swansea who played very well and made it hard but we kept going, pressing and eventually the goals came".
"I'm very proud of the players. It's not nice but thankfully nothing happened", he said.