I'd rather see them ban light emitting devices and cameras with lighted displays during nightime shows / parades / fireworks first. While you are at it make everyone turn off those annoying flashy hats during the shows / fireworks too. That's just RUDE.
As to the sticks, I haven't noticed an issue with them. I don't own one, nor would I buy one, but on the list of annoying things, they are way down it.
Speaking of which, as long as someone in front of me has a ipad hoisted up during a show/fireworks, don't say anything to me about putting my daughter on my shoulders until you talk to them first.