I'm not so sure that I can agree with you.
The Falmer's Ice/Cold affinity came from their specific race of Mer, not from their armor. Their Magical aptitude and skill with weapons came from their intellect, not from their armor.
While I accept that your opinion is that Falmer armor
should have been different. I'm afraid that I can't agree with it. If we want Falmer abilities, then we're just going to have to wait until/if Bethesda places them in a game.