OP is right, but I'm also sure that you spent the majority of your time in game and not here in the community section. There are a lot of topics which are discussing the future goal and direction of the game. And there are also a lot of threads about ideas. And the best part is, these devs are really listening to the community. 

So don't worry, you will get these things.

As far I remember right, one of the devs also mentioned....or maybe it was in one of your vids Hydra :) that they mentioned, that the current state which is playable is containing only about 1% of the actual game. :)

But if you have any specific ideas, feel free to throw it into the community. If it gets a pretty positive feedback, it will be recognised :)

I feel like you may have overlooked the point of having a staged release, we are intentionally testing level 1 gameplay (power level 1) in total there will be roughly 50 perks, 250 skill points etc and a lot of customisation (ish), but remember right now the priority of what we are doing is testing game features and giving feedback on them, all the other fluff is coming don't worry. It's just not priority in terms of testing as first you need a working skeleton :) right now there is no reason to have a goal, you are on the first level - 1% of a game (quoted from the devs) 

I would agree that it would be very nice indeed if there was more of a skill tree, like conerstone abilities that gave you new attacks. 

If you specialize in chainswords perhaps you would get access to a special (by whatever name) attack which would let you shred armor. 

The interface certainly has space enough for adding these things..
Attack 1 : LMB
Attack 2 : RMB
Attack 3: 1
Attack 4: 2
"Ultimate" : 3
Grenade: G
Suit ability : 4

Something like that..