Lets have it right, Most referees have an element of incompetence and definitely inconsistency. There is nothing wrong with VAR really, apart from the fact it's the same people operating VAR! It's no surprise we have problems with it.
Now, we want to give the officials another 'get out' of making a decision, like 'I'm not sure so I will let VAR decide'. Now it's, 'I'm not sure if it's a booking, and I don't want to upset the dippers, but city can't say I didn't do something about it, and they should have taken advantage whilst Van Dyke was off the pitch for ten minutes'.
It's another sticking plaster when major surgery is needed.