Exactly this.I wonder if the problem with VAR isn’t VAR but the total lack of common sense. If you have ‘’clear and obvious’’ then the ref should in 1-2 seconds be able to see if it’s wrong, if it takes longer then it is not clear and obvious. If refs are not able to do this then there is an issue with having job worths at the helm.
If you can't see within 30 seconds, it isn't clear and obvious. I don't see this level of scrutiny for other team's penalty decisions.