I play all classes and this nerf leaves BBs too vulnerable to DDs.
Waiting to reload HE when a DD pops up is not an option, and you can't always expect them.
What this nerf does is preventing BBs from pushing, because they cannot defend themselves.
If a DD gets too close to a BB, there has to be real punishment. Everything else is dumbing down the game for DDs.
Option A:
The damage that BB AP can do to DDs needs to be tweaked, for starters maybe 15% instead of 10%.
Option B:
"Expert Loader" skill needs to be buffed for BBs (-75%, like on the USN special captains).
(If you want people to use the right ammo for the job, at least let them switch in a reasonable time.)
Edit: This is not about making it like it was before. This is about tweaking it towards more damage.