Is there not already a plan in the works for runner? And runner isn't even that bad.
It's more along the lines of how annoying and powerless they are, the shotgun does rediculously low damage unless all bullets hit, and even then it's negligible at best. The entire class was created merely to annoy the boss more than anything iirc, and they succeeded in that regard, but the class itself serves no useful purpose, it could be better spent having the person go healer, or even firebug if they want the extra movement abilities.
tl;dr: runner is made to annoy and it's weak and it sucks and I want it gone and I'm hungry.