This is dragging on too long, but can you at least accept, without resorting to platitudes (don't want to re-referee the game, not expecting to get everything right, decisions are subjective, etc ..), that VAR protocol COULD be to give the referee the opportunity to get decisions right in all the incidents it looks at. Not all incidents on the pitch in the 90 minutes, just those the protocol says it can look at. What benefit to the game is there in a protocol that actually validates a bad decision (such as not awarding a free-kick to Kane in the non-penalty incident, or the yellow card in the FRA-MAR game). Both could have been reviewed by the referee as part of the incident review and the correct outcome could have been applied.
I know it's not the protocol, but I can't think of one reason why it shouldn't be.