Indeed, It can still be installed from Ansible Galaxy, as @russoz pointed out.
The main issue that prompted removal is
No guarantees of compatibility with ansible-core versions >2.17 will be provided
Ansible 11 ships with Core 2.18 and 12 will ship with 2.19, and one of the most basic requirements is that collections in the package test against the version of ansible-core that we include in a given version of Ansible.