But even with VAR the correct decisions are sometimes not made. We've already seen incorrect decisions happen using it. Sometimes decisions go in your favour and sometimes they don't. Sometimes people get punished for the same offence where no action was taken in another. Sometimes a foul is given when it was a complete dive. Sometimes they're not given when it's an obvious foul. Sometimes a player is fouled in the box but they keep on going rather than go down and nothing comes of it, but if he had of gone down a penalty would have been given. That's one thing I like about Messi. He hardly ever goes down and keeps fighting even if he's been hacked at and will usually try stay upright at any costs, but he could just as easily fall on the floor and get a penalty and in many cases I think he should have done, but that's the game for you. It's swings and round abouts. Where there's a human involved then there is both opinion and room for error and that won't change with VAR. It's good that it helps makes the right decision but at what cost? Ten minutes taken out of the game whilst refs decide on what to do over a few instances some of them very petty and made out of desperation from the opposing team?
If we're not going to rely on the officials then we might as well get rid of linesmen and maybe even referees all together. Maybe just let the decisions down to VAR or even just an algorithm so you take the human error out of it. Nothing is ever going to get it 100% right but we need to take the positives and negatives into account. VAR is only something that going to be happening in top flight football anyway whereas anyone else playing the game whether professional or amateur is still going to have to carry on the same without such technology.
The main problem of VAR system is human factor. After watching all replays decision still should be made by referee. In football there are lot of room for interpretations and every referee interpret rules differentely. This is why sometimes we see different referee decisions in same situations. In other sports like tennis, basketball, ice hockey rules are very clear and there not much place for interpretations, so in general everyone is happy about video replays in these sports.
I agree that VAR reviews is taking too much time. So, I think that football need something what we have in tennis - it's challenges. For example, every team can ask for VAR review only once per match. If VAR review shows that referee made mistake, team which asked VAR review can ask for replay in same match another time. If after review VAR shows that referee was right, team lose their replay challenge.
It's normal that we have VAR only in top level football. Same like Hawk-Eye is only used in biggest tennis tournaments. But I heard that FIFA is preparing VAR for lower level football also where matches is only filmed with only 1-2 cameras.