Pretty easy to reset the HP of this particular quest mob, at the end of “Too Deep”. Pandemonium and Singularities frequently reset the critter’s HP.
I had reported this back during the closed beta. The same is true for the Research Assistants who are present in the Dimensional Arachnid encounter of the Ankh starting on the Elite 5 tier.
So did I, and a lot of the shades so effected were fixed, but this one wasn’t…so here’s another report