As for realism, isn't RM about it? It's a bit annoying to see RM players saying that RM is far superior to all other RPGs (usually, merely meaning D&D) because it's realistic then being answered when pointing out something is hardly realistic that, sure, but it's because it's balanced. Without, you know, any kind of further justification.
I can't speak for all Rolemaster players, but I like RM because it allows for a gritty, "realistic"
fantasy game. Every time I make a post and have to address "realism" in a fantasy game, I always put realism or realistic in quotes.
The appeal for me is that RM combat mechanics allow for more "realistic" options and therefore more strategy and more fun for me and my players. I just can't go back to more simplistic combat systems.
But I never thought that Rolemaster's Fantasy "Realism" was ever truly realistic. It is a fantasy role playing game, not an attempt to simulate physics and combat in the real world.
Fun experiment, find the best fighter at the nearest medieval fighting organization, give him the best sword and shield you can find, and take him to the nearest zoo.
Drop him in the rhino enclosure and tell him to eff up that rhino!
Now best case scenario, after he is released from the hospital and you are untangling yourself from the legal mess, imagine him taking on a cave troll or red dragon. Heck, the ancients were often more "realistic" about someone's chances; Even Sigurd ambushed the dragon from a hidden pit.
The vast majority of what fantasy role players and movie action heroes do isn't even remotely realistic.
There is realism, and then there is fantasy "realism", or "dramatic realism", or whatever you want to call it.
A big part of any fantasy role playing game will have to be balance as long as the players expect to have more than one role to play.