Maybe it's me, but I'm not seeing that at all. In other demoes of them holding the WIN with thumbs on the controls,it seemed fine with clearance shown - ie I think it's just the camera angle in the video. Not that I'm concerned about hitting the keys, they require a lot of pressure on a small area to press judging from tests I did on similar keyboards I own - part of the fleshy base of your thumb resting on them is not enough to press them. Not seeing the huge difference between the control placement, keyboard etc between it and the Pyra. There are differences sure, but not really seeing all that huge a difference.
As for the Pyra, I have a real concern about the proximity of the X button and the keyboard on the Pyra. I know in tests ED said he hit the keyboard key when using the X button, and I can see why, judging by how close they are. I hope that's fixed with raising the buttons as he plans.
Don't get me wrong, I think there's issues with the WIN keyboard, for example the left justification.
Also, I have no idea why they chose Asphalt 8 to show in a video, its PC port is known to be bad, plus why show a PC port of a well known android game . People want to see PC games they haven't been able to play on Android hand helds.