...It's just speculation. I agree, anybody can get cut and bleed but with blood spurting off of Silva's forehead into big pools on the canvas, made me cringe. If it was on FX they would have stopped it much sooner. With Miller it was pretty dramatized by Rogan. He was graphically descriptive pointing it out and the close-up didn't help!.,,lol!
My point is, I'm sure someone at FOX knew that the potential for fights like Cain/Bigfoot happening on their network was possible, of course something like that hasn't happened yet but this is a seven year deal, I'm sure they'll be a blood bath on there one day.
Then again this is the same network that airs Glee......so who the hell knows what they'll do.