I said undeniable because you can watch the guy in the video (and in the other two videos at the website linked in the article) add slides and vibrato that you can't do with the average keyboard. Maybe he's the only one in the world who can do it because he's practised it but one of the linked academic papers says otherwise. (You did read the papers before you formed your opinion, right?) BTW, the papers answer some of your objections. Of course, I hardly expect you will find them convincing given that you've already made your mind up.

I'm not as sure as you that two pedals could do this just as easily. Pedal technique takes practise too, especially if you're controlling two of them independently (in addition to controlling both of your hands independently, of course). I submit that you can't yourself be certain it's easier until you have actually tried both, which of course you haven't.

Clearly, if any real products eventually come from this you are not the target customer. So why so vociferous in your condemnation? It's not like anyone who has anything to do with it is listening.