I support a floor cap. It's a very simple solution with no obvious drawbacks.
The drawback is that the whole point of it is to make things so bad in the realm that you have to go to war. The purpose of it is to let the majority of the players in the game who don't get to play the "Council Channel" aspect have something to do, and to force the Councils to find a war for them somehow.
Advies culling all the spawn is an unforeseen consequence, so perhaps increasing monsters/undead as a an affect of TMP would help things out.
