"Not a crypto library" warning is confusing

I've seen a few projects use rand in security sensitive code.
A reviewer may eventually point them to this warning in the book:
https://github.com/rust-random/book/blame/master/src/guide-rngs.md#L263-L271
Inferring that rand does not provide cryptographically secure prngs and they should use a different random library.

That warning was added ~5 years ago.
However in what looks like the same commit there's a section on Cryptographically secure pseudo-random number generators (CSPRNGs).
https://github.com/rust-random/book/blame/master/src/guide-rngs.md#L62

Is this warning out of date?

If it is not out of date, should it be interpreted to mean:
While this library has CSPRNGs that are in fact cryptographically secure, this is not a general purpose cryptographic library providing other algorithms like encryption and authentication? (And if you want encryption and authentication you should go to the referenced libraries instead of building your own using rand.)

If it is neither out of date nor a warning against rolling your own crypto, then it seems like the rand library documentation should be updated to remove CSPRNG references. https://docs.rs/rand/0.8.5/src/rand/rngs/mod.rs.html#53-62

Example issue:
https://github.com/confidential-containers/confidential-containers/issues/44#issuecomment-1224980099

Start with src/guide-rngs.md at the linked warning and CSPRNG sections, then compare the referenced rand 0.8.5 rngs module documentation. Determine whether the wording distinguishes CSPRNG support from a general-purpose cryptography library, and update the documentation consistently if the project’s intended meaning is established.