Cause really, adding more dam reduction to villagers just makes them all the tougher. Granted, an invoker can stoneshatter it, if they get it through spell bane but most people really just have to deal with it and hit them all the more.

Fighting a svirf villager that takes gates, puts up resist and stoneskin, and you see pretty quick that not as lot of melee classes can beat him, unless maybe he is a scout since spell evasion and critical probably aren't helping him where as deathblow/thirst or healing ability would.

Vulns only matter if you land strikes that exploit it too. Vibrato is great against them for example, but if they are not getting hit all that often the vuln does not matter. And keep in mind a vuln exploit is not going to multiply damage anywhere near what deathblow will.

If more svirfs took defender or scout, I don't think anyone would complain about them as much. Thing is most go berserker, and thirst + deathblow + resist + stoneskin is going to pretty much beat a lot of other single char builds in Thera in a straight fight since only a few classes can probably get equivalent or better dam redux, but they can't ever really match the damage output of the deathblow capable svirf, and those who can match the damage output tend not to have the same level of dam redux. Then again, I really do not see many people going against villagers 1 v. 1 anymore, so sort of a moot point.

Bards being an exception in their ability to rape villagers of course, but that's mostly because of strong melee defense, distortion, and vibrato, and really even then the bard does not have a win button by any means. The general ways I see svirf berserkers being beaten are generally just not available to a lot of builds though in a 1 v 1 fight. Hard to perma lag them, and even if you do you have to exceed their melee ability which is always difficult against a berserker. Hard to match them just in pure damage output too. Basically, villagers you have to fight them with a bit more tactics than others because rarely will you just win a straight up slug fest against them.

All of this is working under the assumption they have the head of course.