Why is this downvoted? It is interesting (and worth pointing out), since not using systemd is different from every "enterprise" Linux distro out there.
Sorry that was me, when I read it I thought it was a snarky 'systemd vs bla' comment, upon re-reading I see that you could well be correct so I appologise for that, I will be less hasty next time.
Actually, I take it back -- you are probably wiser than me, pre-empting the systemd battles that always ensue :-D.
Alpine really wouldn't fall into the Enterprise category due to it's small size and developer pool. It's a great community project that I wouldn't doubt has some form of corporate support financially.