How much value is there now in resist overcap?

[Volek]

Huh, I was under the impression that non-unique monsters no longer apply RR

@Zantai

Monster abilities no longer apply % Resist Reduction and flat Resist Reduction. Unique monster debuffs that reduced resists continue to do so.

But according to this thread some lower tier monsters (Possessed Archmage, Ancient Gargoyle etc.) still do? Or are their GT pages not updated yet? I’m confused.