The studios should known better than releasing most of their films on the same week...although with even that said, this should had been a month with only two tentpole releases instead of four. The films destroyed each other by aiming for the same release period, and aiming for the same demographics (with Aquaman/WB being the only real victor here—DOM OW won out against Bee and Poppins, higher OW than Spider-Verse, great OW overseas).
Fox was absolutely smart to move Alita out of December; Paramount and Sony should had done the same with Bee and Spider-Verse. I think Poppins could had worked as counter-programming against Aquaman if it was just those two films releasing during this period; but as it stands, Disney is arguably the biggest loser and the biggest dummy to come out of this, because they threw Solo (and arguably Nutcracker too) under the bus to give this film (and Ralph) room for the holiday season slot. So much for that...
Disney seriously needs to do something about the management responsible for scheduling their films. They keep slotting their films so close to each other (and rival competition) and send them out to be buried as a result.
e: Forgot about Marwen, the invisible colossal bomba. Complete disaster for Carrell, Zemeckis, and the rest. They all should had known better.