I wouldn't say lightyears since it could easily be fixed by altering ability cooldowns and power ammo drops.

It's really not that bad. I really think that if Bungie makes power ammo drop more(like a lot more) PvE will feel pretty good! But hey, as always, it's my opinion. [spoiler]Also the arc stripper dodge Marlee dodge melee dodge... combo is super fun[/spoiler]