Holm displayed a great deal of sportsmanship there at the end (and throughout, really).
Hopefully this teaches more fighters to not be so flamboyant, not be assholes. Be like Barry Sanders. He ran right over and around defenses for years, while being heralded as the greatest running back ever, and didn't adopt some kind of arrogant persona. When one talks the most shit it makes their inevitable fall worse, and encourages fans to ridicule them like what is happening to Rousey now (and also Tyson, Prince Nassem Hamed, countless others).
Just be cool. Do your sport, get your money, and get out.