I can agree with further differentiating sch from smn, although when I think about it leeches were used to treat ailments IRL so that name was more fitting for the esuna type move. When they get time maybe they could just use a new name for sch's dps aetherflow dump and new animation. Next expansion maybe Bringing back energy drain was just a reluctant quick fix they had to do.

I'm sorry, but I don't really understand what you mean. Energy Drain and Leeches have nothing in common. o.0
a name change for energy drain topic, no change to effect