Read the fine print in those NDAs, boys.
In case anyone missed it, the interviewee, an actor that appears in the trailer, didnt say much. He mentioned how the Switch and the dock felt like the real deal. He also said the Pro controller was THE most comfortable controller he's ever held.
Big takeaway was that he also mentioned how there are "things about the console/controls that people still dont know about that hasn't been revealed yet". So yeah, Nintendo's holding back some features for sure.