Eminem is controversial, no question, but if I was him I'd sue the producers and Cohen for sexual assault/harassment and conspiracy for sexual assault.  I really hope he cashes out on this one.  That stunt was just uncalled for, no matter who you are.
As for me, if I had been eminem I would have executed some grevious bodly harm on Cohen, claimed self defense, and STILL sued for sexual assault/harassment.
FWIW, the youtube link has been removed but CNN still has the video online.  I guess copyright only applies to regular people, not media outlets.