Might just be me, but I've only noticed being actually hit by NPCs burst a handful of times (maybe 7) since I started to play.
And my dodges really do suck, so it isn't that.
In fact, Bursts are the only specials I've been hit by at all from NPCs...
PC based specially pretty much always hit regardless of skill. Wouldn't think too much either way if I was never hit by Burst, but the sporadic behavior concerns me a bit.