Using skills to CC or damage in this game is a joke. If you think your doing your team any good shooting a small 2 meter radius thing at 1 enemy every 20 seconds, or using a turret/seeker every 2 minutes that usually breaks before it gets to its target is benefitting your team more than just simply killing the enemies with a high dps talents weapon build, than you got no idea how bad build diversity is in this game.

There is not any point to utilize anything in this game outside pure dps, and it kind of sucks, but thats just how it is. If people would stop giving massive blind praise on every single little thing maybe one day it would be worth building tank, or cc, or a healer, or a skill build, but at this very moment all that matters is stacking as much damage as possible while avoiding armor and health so you can kill the enemies far before they have a chance of killing you.