My opinion is that the call was very harsh but whatever. You can make arguments for it being correct and you can make arguments for it being wrong.
What irks me so much is that, time and again this season, it seems as though a disproportionate amount of time is being given to VAR reviews for decisions that rule against us and not enough when one would go in our favour. The City penalty and now this are two very recent examples.
@RuudTom83 is correct to point out that, if you slow a replay down enough, zoom in hard enough, and look at it for long enough, you're probably going to find something that
could justify a penalty being given, a goal being ruled out, a red card being shown etc. This is the issue I have with VAR. It seems that there are some incidents where they'll want to perform these very very thorough checks, and some which they're happy to be done with after 30 seconds. Unfortunately, my perception (and to be clear, it is purely perception at the moment) is that we are too often on the wrong end of those incidents where they decide to be thorough.
One solution I've seen proposed, which I somewhat see merit in, is a time limit within which VAR must make a decision. This would include refs being sent to the monitor, so that couldn't just be used as a loophole. If VAR cannot determine that an error has been made by the on-field ref after, say, 90 seconds (the precise amount of time is arbitrary), then the referee's original decision should stand. There will still be disagreements and inconsistencies but at least then you won't have some incidents receiving much more VAR scrutiny than others for seemingly no reason at all.