I remember reading about it and that it would be not possible anymore, but im not sure.

I'd love to farm this instances since the rep items are nice, and well also heroic would be nice gear hear and there (trinkerts, shields). But indeed that vexallus stops me from doing that . But earth ellies would be the solution? And all dps chain heal them, or (running 3x ele 1x rest + prot pally)