Wow holy mother, the amount of depthcharge dropping planes is obnoxious. It seems like everyone has them except for DDs. And the rate at which they can be used... It's less subs that hunt BBs and CAs and more BBs and CAs hunting subs. The only strategy they need to employ is "Don't go all on your own to the other side of the map".
If we for half a second ignore that fact that BBs apparently deploy and armada depth charge dropping planes at a 5 second notice, they should be more limited so they're not spammed as intensively all over the place, or make it a more tactical decision of when to use it by having it on a longer timer.