What happened to "rust-bus" maintainer group?

https://github.com/rust-bus states:

This organization was marked as archived by an administrator on Jul 21, 2023. It is no longer maintained.

It has a lot of crates on crates.io though: https://crates.io/teams/github:rust-bus:maintainers

Does this need a security unmaintained crates advisory? Opened an issue on rustsec/advisory-db to understand the implications.

EDIT:
54 crates they maintained on crates.io are updated within the last year.

The other 64 crates have been updated the last time over more than a year ago. Which makes me think, that rust-bus maintainers could be one of the main maintainers of these crates, and it might be warranted to assume they are now unmaintained?