Yeah, it comes down to RDM's role not being filled unless it has a geo(as you said).
Which is disgusting. Nerf geo to the ground and rebalance the game so that we don't need a geo to play the damn game.
It's completely absurd that a RDM cannot do it's main role of enfeebler without a geo to give enough macc to actually land things, what were they even thinking?

RDM NEEDS TO BE ABLE TO DO IT'S MASTER ENFEEBLER ROLE. Smite let's DRK do it's damage role, last resort helps a ton, souleater helps a bunch. What does RDM have to help it enfeeble? Nothing.

Stymie should be passive.