My Tebow example was more about deciding not to win ugly than tactics. Defensive American football is different than what the Broncos did with Tebow.
Horrible example with Tebow. Tebow is not a world class quarterback. Your Tebow example would have been appropriate if Jonathan Bornstein led Chelsea to a UCL title off of dumb luck.
Sport at its purest form is an athletic contest between sides. The goal is to win. It is simple as that. Yes, everyone wants their favorite team and/or athlete to have an aesthetically pleasing style of play, but that is a secondary goal. The objective needs to be maximize your chance of victory, not put on a show for a theater-going type audience.
The best example that is personally relevant to me is the Chicago Cubs. As a Cubs fan, I love the atmosphere of Wrigley and the game day experience is unmatched IMO. However, I would trade away Wrigley for a World Series title any day of the week.
If you asked fans, "Would you rather your favorite team win ______ (either a league title or UCL, depending on the quality of club) or have a respectable season with an attractive style of play?" If you answer the latter, then you are a fricking moron. Results matter. The bottom line matters.
One of the greatest moments for every fan is when they experience the sheer, unadulterated joy of winning a title. That is a feeling that cannot be equally by an attractive style of play, tactical acuity, or exciting matches.