"Protecting his baby" might be a very wise decision at this point, if only because of how the reception generally goes; pigeonholing the project into something like "an AR coding environment" or "visual programming with projectors" is a very real risk that could damage the project's aims - even "clones" such as https://paperprograms.org/ make it abundantly clear that they are not attempting to be an "opensource Dynamicland".
It's only been 3 years since it was founded. While that might be generally considered an eternity in tech-time, I feel it's barely enough to get one's feet wet given the scale of the project, which seems to aim to be decades long. Besides, the roadmap they've got on their website mentions 2022 as the year they go public - so, I personally am stoked for what that will bring.