Good news.

What would bug me though if I were getting a XBone would be that (2) of those games were supposed to built as Kinect only experiences that later scrapped the whole Kinect idea and went for traditional controls.

That kind of attitude shown - which to me is "We can't get this to work" - would make me annoyed that the Kinect is being forced into my purchase. Especially if they can't find a real good way to make use of it.

It's kind of like the situation Nintendo is in with the gamepad.

Ryse still has (optional) Kinect motion features though and I bet Crimson Dragon is fully Kinect controllable (like Child of Eden).

I mean many people wanted to be able to mix Kinect with traditional controllers. Now it's happening, while still having Kinect "exclusives". I doubt Kinect Sports Rivals will have any controller support (except for the menus).

Did they show any kinect gameplay by any chance?

And yes, there were some games that were - categorically, without a shadow of a doubt - running on Xbox One hardware. It'll come as little surprise to learn that first party software was more likely to be showcased running on the new console, with Turn 10's Forza Motorsport 5 the most high profile title we saw that was visibly operating on the actual console.