I know the length of this reveal won't effect the overall time spent on other things, it's just that Nintendo has a history of spending too much time on specific things that I myself find incredibly uninteresting. I'd rather a briskly paced E3 event if it meant I avoided a long explanation of something I find super boring. The F2P aspects people are now mentioning are even making me less interested.
Am I supposed to be expecting entirely different or am I not supposed to guess what it is? It's a game called Mario Maker, has a hand adding something with a stylus, and features retro graphics (like rom hacks). Combined with the fact NES remix 1/2 were moderate successes, it makes it a pretty obvious assumption as to what it is.