mefistofeles I might be wrong, but I think there might be a rule to not share .eopkg files in the forums, but I might be wrong.
Anyway, have you reached out to upstream to see if the issues could be resolved there? I think that the config option is useful for Docker and other things, if I remember correctly. But other distros might not be using it if they have real-time JACK working, so I am a bit confused as to how they have it working and not us. It worked for a while sometime back though and I wonder if later kernel releases broke it, or if we just turned on the config around the same time.