I’m not gonna lie — part of it is probably because it is an annoying way to die when someone wins a fight simply because they jumped, and you do not have enough skill to punish them for it and win the duel.
You answered your own problem. Movement in this game is fine and there's more than enough penalty on slide > jump combo. They are moving in a linear motion and are incredibly easy to track.
There's no balance problem here.
unless I am remembering the series wrong and it has always been this arcade-style FPS
You are indeed remembering things incorrectly. BF has never been a milsim. Dolphin diving, super sliding, zou zou etc. BF has always been arcady.
What also feels ridiculous is that a player can gain instant advantage over an opponent by pressing one of the hardest keys to miss on a keyboard.
So...change the keybind then?
