Boxing fans are way too concerned with the undefeated record and Floyd does not help matters. I said elsewhere once an undefeated record in boxing is more often than not a case of a guy that's just fought stiffs. Deontay Wilder is undefeated with a 100% KO record and after 31 fights we still don't know how good he is. Anyone remember "The Danish Pastry" Brian Nielsen? Matched Marciano's 49-0 in heavyweights before he lost. Julio Cesar Chavez Jr. was 46-0-1 after 9 years of fighting before he lost to Sergio Martinez. He's now one of the 5 biggest draws in the U.S., turned down $12 million for two fights against Golovkin and someone else, and the best person he's beaten his entire career is Andy Lee. There are some guys that enter UFC undefeated and normally they're found out pretty quick. Or they go straight to the top as Velasquez, Jones, and Rousey did (Rousey admittedly in a much weaker division). Jones is "undefeated" in a Fedor sense as his lone loss is a DQ, Velasquez has since lost.
Re the article, I listen to a weekly podcast with Steve Kim and Gabriel Montoya of Maxboxing, a caller asked them if they had read the Deadspin article and Kim laughed and answered, "Yes, everyone in the sport has read it." They both said it's something that goes on at lower levels but if you fix a fight on TV with all the attention you have some big brass balls on you. Montoya then talked about an undercard fight one time he saw he thought was fixed.
(Haye KO3 Harrison - can't prove anything, but it wouldn't surprise me)