People only got banned by exploiting LFR to GET ADDITIONAL LOOT.
Even if you were in their 25-man team that ran 50 times in a row, if you kept passing, but didn't loot anything, you didn't get a suspension. Only the "chosen" who were being funneled gear got suspensions, not everyone did.
Also, I find it funny they are pushing 10 heroics as well considering how the "hardcore" have always looked down on 10s with disdain. Hilarious.