If nothing else, it should be waking up someone at Disney that their current marketing SUCKS! That terrible rap commercial fro 7DMT, the money wasted on a dragon flyover one time for a stupid media event only, the piss poor events of the past two years ("Limited Time Magic", "Show/Rock Your Disney Side"). They created ZERO buzz except among those who are already fans. THIS kind of publicity has introduced Universal Orlando to a HUGE new audience and shown off the parks beautifully.
I never watch the Tonight Show or the Today Show but tuned in this week, but I know they are big tent poles for NBC, reaching large audiences. I think they did an amazing job of showing off the parks as a whole and Diagon Alley in particular. This appealed to soccer moms and many people who had no idea there was anything comparable to Disney at Universal.
I know it doesn't hurt Disney at all in reality, at least for now. But, at the same time it undoes part of what magic bands were supposed to do, which was keep people on Disney property for their whole vacation, and for Disney that adds insult to injury with the whole debacle of rolling magic bands out. And Universal will produce better results for a LOT less money than Magic Bands cost Disney. ROI is where it's at, and Universal will show that.