There is no question that WP Cerber is one, if not THE, best security solutions for WordPress installations. I’ve used it for years on my client’s sites and always felt confident that the plugin always performed excellently in keeping the sites protected.
For that reason it is hard to understand why the developers have made a deliberate decision to delay in perpetuity the return of WP Cerber to the official WordPress plugin repositories.
Perhaps there are legal reasons and not technical ones to keep in this state. If so, the devs could possibly explain their logic in a blog post; and add either a timeline for an eventual return, or a final determination not to do so.