That gets into the pretty interesting discussion of when does it become acceptable to use 'camera tricks', or at least tricks like throwing cards, in magic vids.
You could argue that throwing cards (or whatever) makes for better viewing, but obviously not better magic skill. But then... we all know that a brilliantly edited magic video makes for much nicer viewing than something shot on a camera phone - is that an unfair advantage? Hmm. *Goes away and thinks*
*Loads Final Cut Pro to edit to death a flourishes vid*