When table-top games develop mechanics that in turn mimic MMO concepts, what else are you supposed to call them? We had a Knight PC in a 3.5 game, and we called his special ability aggro because... well, what else do you call it?
Of course, for me, it bothered me that MMO concepts were in the game to begin with as much as the terminology. There's only one or two guys who occasionally talk about character building strategies in MMO-term laden diatribes. Me and another player are deliberately obtuse and refuse to understand what he's talking about most of the time. In general, the rest of us don't care about MMO concepts or terms, because we're not power gamers, and the concept of building characters around MMO-influenced roles is foreign to us--we build characters based on literary roles that we may find interesting.
Of course, this is where the MMO-talkin' guy gets his ammo; to him, we aren't "properly" building our characters to be efficient at the roles that he imagines them to naturally fall into. The problem, as we tell him repeatedly, is his concept of what my character is supposed to be and my concept of what [my own character are supposed to be are often at odds.
Luckily for us, nobody takes these conversations all that seriously, and they rarely come up anyway--and only when we feel like maybe we've had our butts handed to us in a recent combat or something anyway.