Now it is closer to how a tank would behave IRL (I know that this is a game, but still vehicles should follow general rules of physics).
Now tanks are rewarding for a skilled player, giving a proper challenge. In earlier Battlefields they were The Easymode, just spamming death to every direction, regen health and all. Now you can still wreak havoc if you know what you are doing, but a lot of people just don't know how to think while playing. They are so used to mindless shooty shooty grab my booty -games, that anything that gives a slight challenge is deemed as broken.
And that goes to everything. People need to learn to play BFV "properly", they have to adjust their playstyle. It is already happening, fortifications are getting built all the time now (some of those are pretty wow, big constructions!), recons are spotting for the team, medics reviving and tossing health... Assaults are being cunts and not killing tanks though, but that is a given since they are Assault players and don't know shit about team play (yeah, I am a little bit upset about them, and some utter geniuses want to make them again as powerful as they were earlier with healthkits...).