I think the 80% cap was intentional (they changed what I would change if I wanted to lower the resist cap). That being said, I think they forgot about the Zombie talent getting nerfed as well, seeing as how that still gives a 200% boost to Poison resistance.
I'm going to see whether it could be possible to make Zombie work properly even if the resistance is capped at 80%. It might not be possible though, depending on how the damage is carried out.
