For what he's done, created and knowledge, I respect his opinion. It's 1995 tech, what could be done with it. It would be like getting the tech specs to any of the Amiga models. Can't build a new one that easily. Not to mention who has the expertise, time, and money to improve then produce the design.
For what the Apollo is, it could be done better and easier with a modern design.
From a business standpoint, if something like it is in the works by him or some other party it could cut into their bottom line.