Only the third time I've heard of someone thinking Machida didn't win the first round against Jones. Richard Bertrand and Jeff Blatnick are the other two.
I may need to watch that fight again, but I remember a pick 'em round where neither fighter did that much to take it. In which case the nod should go to the champion.
Not that it matters since, y'know, there are no robberies in a fight in which someone gets dropped and then choked unconscious.