I guess in there head, it was good.

I remember a guy on Discord said that the devs don't understand how tanks is played in there own game.
Because some ppl were crying about the difficulty of the role (in HW I mean, and even then that wasn't really difficult as ppl said) they changed the DRK and the WAR in SB. Result : there is less tanks players than before. More : the biggest change when SB has been released was for the DRK, to make it "for everyone". Now, we have less DRK than before. Even less than in HW, were the DRK was already the last tank picked by the players (even if everyone, or almost, according to say it was a good job).
The idea of skill choice in the game is not really good, because some abilities are too much useful to not use them.
And some are just... Useless.