Champions are awesome.
It's very rare for bat to perma lag someone WITH PROTECTIONS from healthy to death. It totally happens, but my record was something like 15 rounds of permalag from bat alone which with rally up can be a lot of damage but still might not be enough against some enemies.
With an eagle staff, it's a little less rare, again against someone WITH PROTECTIONS.
My experience was that aggressive hunting will result in frequently perma lagging a totally unprepared, unprotected enemy to death, but that only really takes getting lucky twice. When I had an eagle staff that went up to extremely frequently.
Against people who are getting two-four rounded in passive melee, almost any class with on demand lag, good gear, good preps, and an aggressive mindset can similarly wipe up... dispel is pretty crazy on a melee character but Shaapa on a transmuter with the same set of gear Erhiadkeb has right now would be 1000x times more complained about than current for example.
People haven't even started complaining about marshal phalanx or the hidden passive defense boosting effects of the fend skill yet. :P