Deceptive list that appears to include only distros that don’t package systemd at all. A distro can offer more than one init system. For instance, Gentoo defaults to OpenRC but offers systemd as an option for users who want it for whatever reason. It isn’t on that list.

(But I agree that if you know what systemd is and that you don’t want it, you’re not using Distrochooser. You’re not looking up your next distro in Wikipedia, either.)