Web/Glitterdust traps are useful aoe cc that stay on terrain for some time, so can affect more enemies than just initial ones.
They have scaled dc with device/int and do not switch weapons.
We used them with success in private duo party with my friend.
Might not be effective in larger random party without communication/tactics that run as fast as possible.
It takes a moment to place a trap and there is cooldown, but it costs no sp and is active for 5 min to trigger (can be prepared as backup when running back).
Problem is that enemy must move close enough to activate, but you can direct them by running straight through with aggro.
You can place multiple traps before harder fight and then kite enemy groups.
It is cc supplement option for arti and more possible actions to do on less spell related rogue or dark hunter.