That`s the reason VAR has not worked so well. The main focus of the people in charge of football at the moment should be to clean up the rules of the game so that any rules that have grey areas can be made to be completely clear. Instead they are way too focused on making more and more money out of the game and ignoring the problems that are there already.
I`d like to be able to hear in real time what the ref and VAR are talking about during the game. It works fine in rugby. You can hear the ref explaining clearly what decisions are being made and the reasons for making them. The big reason for not doing so seems to be because of how players react to every decision that the ref makes, but I think that the best way to have players behaving properly towards the officials would be having this in place like in rugby and it would cut down on players being aggressive towards the officials knowing that the audience can hear their reaction, which might ease the pressure on some refs when making a crucial call.