The MMA framework isn't very narrow at all. In the early vale tudo days the only rule was literally no eye pokes. Kicks to the groin, headbutts and everything else was allowed. More rules have been added over time to make it internationally marketable. But the MMA fighters of today would completely wreck the ones who were fighting 20 years ago, rules or no rules. Fighting has probably evolved more than any other sport in a very short time.
Who are these people who care about "real fights"? Have they ever been in a "real fight"? Professional fighting is the closest thing you'll come to fighting for your life. You put your career, your honor, health and personal economy at risk. The stakes are huge. And to say that it's not a real fight is ridiculous.
I advice you to watch the fight in the first post and come back and tell me that's "aggressive". They barely touch each other the first minutes. It's all about getting a feel of your opponent and finding the right reach, because you're really fkin scared of losing and one slip and you might get knocked out or taken to the ground.
It's very apparent that a lot of you have no experience of fighting, weather it's sanctioned or on the streets. The saying "I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times" Is nice and all but I fear neither as long as they haven't put the kick to use in any real situation.