They seem to be understaffed, and would probably benefit from having additional maintainers.. You could always volunteer.
I was not writing the post to criticise Alpine as I really like it, but people need to take the missing security updates into consideration before they start to depend on Alpine for important things.
Or there's the fork [1] where that is the default.
I tried Alpine Linux and was very impressed, but have always resisted using it for container images because they do not publish CVEs or seem to have much process around security.