I had a bad feeling from the first attack; blue began with an unnecessary spin turning his back to his opponent and it just ramped up from there. While quite impressive from a technical standpoint (especially some of those flips considering the heavy-looking boots and the fact that it is on freaking sand) this just seems over the top to me. I think flipping during lightsaber fights should be left to the prequels and fan films such as this.
JEDIT: I would have liked the ending a tiny bit more if he had switched both sabers off.