You are way over-simplifying how important reviews are.
Correct me if I'm wrong, but Quantumania presales started off very strong and then died off when the bad reviews came out. Then on the other hand, GOTG3 started off kinda tepid until the good reviews rolled in. Then it definitely was up to the audience reception and we know how that went. Not going to say your wrong about audience reception mattering, just that the baseline start after good or bad reviews really shifts the starting point for that reception.
We don't have enough data to show it, but just from the universal rejection of Quantumania to the really slow start to GOTG3, the general public for the MCU might be at the 'wait for reviews' phase and not just storming out for everything just because.