I'll start this with the standard admission that yes I play casters, and the DOTs (as they stand) are really screwing up game balance.
I'll make my second point by saying I like the idea of the dots,making them stacking was cool, making them have NO save remains one of the most questionable game "balance" choices I've seen.
While being amongst the most powerful and SP effective damage dealing spells in the game, they have en equal effectiveness for those casters who dump their primary casting stat,and those who do not.
They (and really they alone) are what is causing the "boss kiting" method to cause the concerns it is seeing from the Devs on Lammania. Blade Barriers are saved against. The Dots are not.
Please note Devs, it is not really the wings that cause this issue, it's the DOTs.
This is one of the choices that make me question whether the developers actually play in anything resembling currently accepted "end game" content, or whether they just continually run new toons through the Harbour.
(Or they all play casters)
When my caster (moderately decently elemental specd PM,) can get 3 dots on a target, it does between 3-400 Hp's, and crits in the mid 700's. That's on every tick. Add in a Sorc debuff and it gets insane.
Again, I like the DOT spells, and don't want their damage or the stacking damage nerfed perse, but I really think, simply from a game balance perspective, that the DOT spells should give the mobs a save against them.