Did you alter naval AA the same way? Otherwise I don't quite understand your reasoning, and naval strikes in vanilla are already extremely OP anyway.
There are some other changes in the mod, but the real issue here is that we wanted better trained air wings to be more effective at their task, not just fighters.
Some of the changes we made you might not like, though.
For example, we got tired of naval bombers only being short range aircraft (no Condors), so we created a land based NAV that has decent range. But we messed around on aircraft stats and the doctrine trees. And we changed some things with ship modules and stats.
I'm still not 100% sure we have carrier air power set up properly, though. And even after we nerfed subs into the ground, they are still very cost effective.