Even though it's my least favorite style to watch, I can see the argument as to why it's so effective since dictating where the fight takes place is such a threatening tool. That being said, it doesn't make it the only way to fight, some of these guys like Weidman and DC seem to think it's mandatory to be a wrestler when the fact is there are some fighters that can get by with the bare minimum just like they did with striking. If a fighter can constantly defend TDs and recover back to their feet like Alex, then it's good enough.