Why you should be careful before you throw a gauntlet

I've seen a lot of people talking recently about the alleged thrown gauntlet of a quote from Zach Snyder in a recent interview. In talking about the upcoming Superman movie and after being asked how he can bring something new to the table with Marvel not only dominating the movieverse for superheroes but also pushing out so many in recent years, he took an expected pre-season arm-flexing position.

"It’s Superman. If you get it right he’s kind of transcendent. The Superman shield is the second most recognizable symbol on planet Earth other than the Christian cross. If you get it right, that’s the question you’ll be asking everyone else. That should be the question you’re asking Iron Man and Thor. How is it that you feel you can be making a superhero movie in a world where Superman and Batman exist?" - Copied here from Nerdreactor, originally coming from an SFX interview.
 

I can't get too upset about this, because to me, this is like the coach of, say, the Jets saying preseason that they're going to win the Superbowl. It's something they say because there's a certain rivalry among teams in their world (comic books, NFL, etc.)