I've already done this argument, but one statement is categorically false:
Shatterpoint and Vaapad will also, of course, come into play- they will negate any physical advantage Kas'im has
Shatterpoint is irrelevant- it has no bearing on physical ability, so I can only assume you are talking about Vaapad, and the ever popular 'superconducting loop' argument. This does not equalize physical disparity, it equalizes Force use. When Mace fought Grievous, he didn't magically get 20 strikes/second, because it was a physical exertion.