Let's settle that it all boils down on the intent. We need additional proof, it's kinda rare to not see videos popping up nowadays.
If Oezdemir was assaulted, then it's not his fault. Were him just taunted I can't go with a (very) light sentence, possibly a fine and being both sides obligated to make ammends publicly.
Now were him the first offender he can go to jail for all that I care, a professional fighter is indeed a dangerous person. Friend of mine got his cell phone taken away from his pocket by a transvestite just the other day, (and he's not even professional) the guy just punched the transvestite and immediately KOed him/her. As soon as he saw that he ran away, he would most likely be charged of homophobia, go figure...
Fighters should also not get overly confident at their own skills, anyone could take both Jones and Silva on PEDs at the same time in an octagon were him the only one packing the heat. GSP might still get a boring UD. (It's a joke, chill out)