Yeah I gotta say this is bs. Aldo just doesn't have a great jaw. We saw it again in his last fight where 1-2 punches took him out again. His style of speed is what keeps him safe mostly but catch him and he's done.A UFC champion getting knocked out with one punch, aye right. I've seen guys with broken jaws and smashed noses going the distance. The moment I seen Aldo walkin the ring, head down with a look of shame on his face I knew something wasn't right. Watch it again on YouTube and tell me I'm wrong. Watch the end of the fight where McGregor apologises to him for hitting him while he was down that shows you all you need to know I've never seen a UFC fighter say sorry for hitting someone.
As for Aldo and his reputation I think you'll find a guy that came from poor beginnings and is willing to get his head punched in just to make a living for his family would do anything if the price was right.
And if there was a fight to fix, it would've been the first Diaz fight. Dana white hates Diaz and Conor was all the money... but he punched himself out and lost, and to a guy who hadn't even been training to fight at the time.