-
yeah it would make sense. it's a common flaw in games though that you max out after everything is said & done.
sometimes being able to unlock all the skills earlier on and then unlock harder challenges as you progress would be better as it gives you a chance to learn the mechanics of the stuff you unlocked and improve with it as the going gets tougher.
the difficulty level is pretty flat across the game once all factions are on the ground.
think i read they are adding an ng+. So hopefully you'll be able to replay everything with all you unlocked goodies