Good point - and so is a goal scored from a wrongly awarded free kick.
...............and as for VAR rectifying things, how many penalties has VAR awarded for wrestling attackers to the ground in the penalty area which the ref. has missed?
"They'd end up just referring each time there's a goal against them and hoping for the best (so today's goal would have still been ruled out)" would suggest you hadn't read the bit about only a limited number of appeals being available.