My thoughts?
Well it's not new.
I haven't played one.
Does it solve tuning and playing issues that are results of players? I can't see how it would.
Does it solve physical properties of the instrument that effect tuning? Maybe one but not all of them.
In the videos I heard; " It just sounds like to me" and when he demonstrated the distorted chord in a high register it didn't sound to me like I would agree with him on everything....and does one think that all the players will agree that it is the solution or better?
Can one tell by listening that a player is playing a true temperament neck?...I really doubt that.
So...I wouldn't spend time learning how to build that neck and I wouldn't spend extra money for it.
YMMV.
I'm an opinionated butthead so I sure don't have reservations of commenting on this.
I appreciate that one would think or refer to me as a luthier but I'm not. I'm a player that attempts
building electric guitars.