Technically maelstrom power feed is still here.... except with the huge power drains nowadays, it's hardly noticeable ! But even if my main is a defiler, I won't ask for the comeback of its old version, which was completely overpowered. I'd prefer some tuning of the most brutal power drains.
The old version may have been OP when the Devs nerfed it. But it wouldn't be now with the massive power drains of this xpac. Some groups simply cannot survive without an Illy or Coercer. Which are now in high demand...but there are not enough to go around. Guess everyone needs to switch to being Etherealists