Well, let me say I'm sorry I can't find any videos of someone using a spin kick while being jumped in a real fight.

The defense of this argument was that spinning kicks were just for show, but I've seen fights on TV where it wasn't for show, but to win the fight. (shown above)
Just because you, or someone else, wasn't trained to use spin kicks, doesn't mean it's not used in training(there are a lot of different fighting techniques/training). Fighters don't use non-practical means to win fights, they use what training they feel is necessary, and I'll take that from professionals I see in videos, than what I gather from some bat-fans on a forum. And these tourneys are real fights, this isn't WCW/WWF(E), these people are in it to win. So I don't know why you're trying to negate a spin kick being used in a tourney?
And while I find tournament fighting to be real(regardless of how you try to spin it), I don't see a Batman movie as such. The point, is that spin kicks are used, and have practical purposes to take people out. Sure, they can be "just for show", but they clearly have real word applications to their attack. And again, this is a movie, it's not real. Someone fighting in a 50-60 pound suit will probably go down fast while being jumped by 1-2 guys.
I don't hate the elbows, it would be nice to see some variety besides punch, elbow, punch, punch, elbow. It's a movie, show some style!