all i am reading from you is "if" and "when".
on PC, there are only a hand full of viable ships and skills when it comes to competitive play. Extreme cookie cutter builds, min maxed to the limit.
have you looked at the PC skill table? It only looks like variety. But arp. 1/4 of the skills are cv only. Another 1/4 is more or less too situational to be viable. especially the secondary gun skills are not really viable in competitive. Every class more or less skills into the same area with only a few differences. most DDs use the same basic setup and only vary the last 9 points. some skills can be found in almost all builds, because they are universally good. Others are more or less niche like wider smoke.
if it really boils down to four cookie cutter captains, those can easily be adjusted to balance them.
and since you brought the broad majority into the equation: They implemented a feature in wows PC, that crosses out skills, that are not useful for the ship you are playing, because most people were not able to see, that a second catapult fighter on a DD is as useful as nipples on a piece of chest armor.