Lot of if's...

Plus you have to factor in IF the synth engine it addresses is capable of handling the extreme amounts of data being thrown at it. Every single finger you have down will be sending a continuous stream of high resolution data in multiple axes... whether you use it or not.

None of our current arrangers can do that (easy enough to choke them with a bunch of aftertouch, pitch bend and continuous controllers already!) and doubtful if they are going to add this any time soon.

Tons of gimcrack ideas have been floated for the basic keyboard 'improvement' for a hundred years or more. Nothing so far has worked out practical enough, inexpensive enough and easily controllable enough with the exception of mono aftertouch yet.

The thing about all this one does is, sure the idea sounds great, but how do you tell the synth when what you are doing with your fingers is something you actually WANT to do, and what is simply the natural motion your fingers impart during the action of playing? That's really the big question. Is any interface smart enough to distinguish between your deliberate intent and accidental motion? Try looking at your fingers while you play... they aren't necessarily staying exactly where you place them, and where you strike each key depends a lot on what note it is, and what your hand position is in when you strike it, what comes before and after.

This thing seems to want more precision than most of us are capable of, and this may ultimately doom it to the pile of 'good idea, but never worked out' that is already pretty high! That Buchla, for instance! Who wants to play a Stylophone for four hours a night? LOL