Yeah thats the good side. Though I was just gonna get myself better HP gear for AV, oh well ;(
Btw what mobs in einherjar resist it? I don't know about those either.
I'm assuming Odin since he uses this:
FFXIclopedia.org said:Sanngetall: AoE damage and dispel that dispells all buffs. Used every time 10% of its HP is lost, with the exception of the last 10% where it will be replaced by Zantetsuken. (8 Times total)
Not completely sure if that's the mob they were talking about or not, so I wouldn't quote me on it, but it's a possibility since I'm guessing by 'dispells all buffs' it would erase any songs, haste, self buffs including SE and BW, and anything else.