The Leites fight is excusable because Leites made no effort to engage Anderson, and Anderson followed suit by making no effort to engage Leites. Both fighters were at fault.

Maia repeatedly tried to engage Anderson, even doing it standing up (where he's the weakest, right?), but Anderson didn't follow suit. He has no excuse for running, since it's pretty clear that he could have finished Maia at any point. Maia was practically giving him a 4th or 5th round KO to add to his record.