The media enjoy writing articles that shock and horrify readers and viewers, it sell newspapers and advertising. Mostly they get it wrong, most people who know nothing about MMA, have never actually been to a fight show or watched one on television get MMA wrong. People should, before telling those of us who know the sport inside out, that MMA should be banned should actually try to find out more about it.
If you ban anything that connects to the head then football ( soccer) would need to ban heading the ball ( it does cause brain injury, it's been proven) horse sports ( racing, polo, eventing, show jumping etc) motor biking, skiing events including downhill, slalom, jumping, luge, skeleton and bob sleigh, rugby, Aussie rules, white water rafting.... I could go on, hard hats and helmets do not stop the brain from bruising when you hit your head.