I suspect the idea may be that given a fully constructed context, you may be limited to however that context permits you to be instead of an independently actualized/realized person.

Could have some unwanted implication for religious people. Or maybe not. 😉

To be frank, I cannot make much of this line. This doesn't preclude some other can make more of it. From the point of view of a reader, it would be great if the writer of this article would put a bite more into this line.

Although if that may be what Nozick was getting at, it’s not without its own problems, much as you highlight with their position supposing existence harboring deeper meaning and significance apart from conscious creations.

To make a long story short: I feel agnostic about this questions. At least, to a degree.