not supported - varium is currently nerfed to mostly be shortcuts but there still should be some non-cosmetic incentives for people to buy varium and the promos are the purpose of that. ED will not nerf the promos just cause you complain about it, if you complain about the promos too OP, heres your solution - get them ! :)
New promos released:
Only given to people not upgraded.
Insta kill on variums.
Son, you can't win against them? GET THEM!
No, Varium is actually way more valuable now. Life is now so much easier with varium. You can get everything so fast, no enhancement means more varium with you.
It's supposed to be a shortcut and promos are supposed to give you a small advantage, NOT an instant win.