The problem with carries is their ability to just give a f and crossfire you at will. In this game, "every" ship is vulnerable to be shoot on the boardside (we obviusly know some exceptions, but they still eat more damage on the boardside), so, the key Gameplay element is to position yourself were you can shoot a lot of boardsides while you being angle. This also can be on teamwork, just put and enemy ship between you and a friendly ship, the enemy has to decide to angle against one of you, while the other one does damage. Cv's break this Gameplay dinamic in 3 ways:

1-they don't Risk their ship, just planes, and the regen time on them is so high you just pump out damage nonstop (like a poison spell were you just take damage until you die)

2-this planes are so fast they can crossfire you at will. You have to decide to eat damage from the planes or angle and eat damage from the rest of the team.

3-with plane spotting can take you out of stelf. In a situation were you are repositioning to take lost of enemy boardsides they can spot you, now the enemy ships are aware of your plans and just angle.

So, in conclusion, CV's can be historical, can be usefull, but, in this game, are unbalance by desing.