Honestly I see exactly NO purpose for such dedicated distro: I use H.A. on my homeserver, deployed via pip, simple, lightweight and effective without the burden of a dedicated distro with the need for security upgrades and enormous integration effort for what? On my homeserver I do many things, there is no point in having many different homeserver or container to run single service if I can consolidate ALL in a single hw, easy to recreate/extend as I with thanks to NixOS/Guix or anything else + some IaC behind.

Such moves have only commercial reasons and normally in practice are commercial fails due to the inevitably low quality of the output. I still have to see ANY dedicated distro with a commercial success behind and without a large number of angry users.