Agreed. All the way around.
I mainly play a Trooper and I have exactly the same issues. I'm not liking the Discipline System. Not one bit. There's a lot wrong with it and for all of the things it supposedly does, it doesn't add anything good to the game whatsoever. One other thing, It's also less fun, especially when Leveling up.
It's pointless, however, to ask them to bring back the Skill Tree, because hell will freeze over first.