I feel like this is a trend that happens in most big fights. People who are indecisive and wait til the last minute to place a bet end up putting it on the guy they feel is the safer bet.
Yes, i did not want to arouse the impression that this has to mean anything bad. But i was a bit surprised tbh, expected the opposite because odds are even more unreal now and everyone who has a clue about boxing AND betting has to take Ortiz here no matter if he will win or lose in the end.