I get that impulse because Bret's pretty good about communicating his whole vision and it definitely has a large amount of philosophy attached to it beyond just the tech, but I fear it's more likely to smother the technology and the idea and ensure it doesn't get much adoption. Right now there's not even a space I could go to to check it out it sounds like because the old physical space was shutdown during COVID and the only implementations now are in a handful (or one?) lab. Much less if I had a space and was interested in trying the exploratory computing ideas for museums and education out before building a larger space I've got nothing to work with.
Ultimately trying to tightly control a technology because he wants it to have a particular impact seems like it's just going to ensure it stays a niche demo instead of making and impact at all. If the idea is strong enough people will adopt and adapt it for themselves because it's good.
It would be easier to agree with you if there were no examples of closed source software, or even non-software ideas (such as libraries), spreading and having huge impact.
Bret is also in no rush here, the plan has taken a decade so far and has milestones ahead of it for a decade more.
Not trying to say it's inevitable but it's way riskier. There's usually a company behind that selling the software making money to continue the process. Bret has a non-profit and now no physical location to evangelize from. Libraries are an exact counter example to this actually, first the idea doesn't require software and hardware, and second the concept is all there really is to it. Making a DynamicLand clone is clearly possible without access to the code but you have to do a lot of blind reverse engineering working backwards from the implementation.
Maybe this is also a little frustration that it's been 10 or so years and there's not actually much new news, it looks better but I'm seemingly further than ever from being able to experiment with it.
Ultimately trying to tightly control a technology because he wants it to have a particular impact seems like it's just going to ensure it stays a niche demo instead of making and impact at all. If the idea is strong enough people will adopt and adapt it for themselves because it's good.