No disagreement here. I'll only ever consider Blood Hunger on Dwarf Rogues, due to their combination of First Strike and high health making Dracul a great choice.
One level of Blood Hunger is fine in my books so long as I'm not hitting 45% resists, but mainly because the piety will pay for itself given enough time.
And yes, we've been asking for a WONAFYT buff for ages. The slow effect, as gjaustin mentions, is somewhat valuable at level 1 but beyond that you just convert this glyph. I don't mind some glyphs, like APHEELSIK or BLUDTUPOWA, going obsolete after exploration is mostly complete. However, this is a glyph that goes obsolete way way way
too early, to the point at which that it's highly unlikely you will find it while it's still worthwhile.