Nexus Clash

Per the wiki this should not be so:

The following Status Effects cannot be nullified in this manner: Hidden, Swimming, Treading Water, Blessings, Sorcerer's Might, Blood Curse, Demoralize, Wytchfire, Pact Debt, Succubus Kiss, Wing Wrap and Agony Curse.

- Mistral attacked you with a Quillfire spell and hit for 14 points of piercing damage. This attack also negated your Sanctuary Blessing status effect and replaced it with the Drained status effect for 10 status ticks. You attempted to nullify the incoming spell, but were unable to discern how to disrupt the arcane energies. (2022-06-05 23:13:07).

Corruptor Hex cannot take Blessing status effects from an Advocate who has them stored ready to give away, but it absolutely can take away Prayer buffs and other buffs given away to non-Advocates via the blessing mechanic.

Ok so this working as intended and is more of a wiki ambiguity thing.

I've edited the wiki to be a bit more clear.