I think the critical tables are most likely described as an Iron Crown Enterprises mechanic, rather than Rolemaster. This is based primarily on my experience with a couple other ICE games where they had their own variations on the theme. WHFRPG had it, and their cyberpunk variant had its own style that skipped the bludgeoning/slashing/piercing types and instead went with things like bullet/electrical/chainsaw.

And as usual, I agree.