Admittedly the video is cool. I just see it being problematic if you’re swinging a “sword controller” around because chances are you’re probably going to need more open space to do it.
That’s also something best done with a console and TV, not a computer you’re normally going to be seated at, especially if you add in the need to use other controls to move around. That’s probably why as of the time of the video they were only talking about an arena setup vs. a full game with other things to it.
But who knows, maybe there’s some tech or concepts that would be interesting to see in KCD. I just don’t see the immediate need for a collaboration based on what I’ve seen Warhorse doing already. I’d rather leave Warhorse to do what they’re doing without any potential delays adding in other stuff like this would cause.