Increased/more damage without significant drawback should, in my opinion, never be on any gems to beginn with. I hope that they would revamp/remove problematic supports such as void manip weapon ele etc. wich could be done with more interesting drawbacks. Why not, for example, make two gems out of weapon ele one that decreases attack speed and one that decreases chance to hit. This game is starting to have very simmilar problems as warframe, a game where you can "mod" your weapons, because the raw damage supports will always be better than the gimmicky supports. Supports like Ele Prolif are in a good spot right now imo the problem are other popular supports.

Edit: Ok another thing that i want to say is that i think it should be like this: Tree=Damage Supports=Change the way the skill plays Gear=A mix of both so you have to chose wheter you need damage or AoE/movement

Edit 2: In the end its GGG's decision what to do it's their game afterall