i don’t agree that P40 is broken. I haven’t played that many times yet (i played both sides though), but not 1 time has Japan really won in our playing group.
In the long run the allies always came back, sometimes they won (thanks to cunning combined tactics and/or a few japanese mistakes), and we also had some stalemates (japan having all the mainland but lost all naval force, while USA dominated all the seas, with Japan getting 1 VC short). Yes India falls, so what? that doesn’t mean japan has won. It can be even useful for the USA (capturing UK territory becoming american). Even though Japan might have more chances to win, doesn’t mean the game would be broken. just harder for the allies (who really have to synchronise and cooperate at their maximum potential)
I really think some people give up too fast.
As for Europe 40 (and global), it is too soon for me to have any opinion about it.