This used to be true, but not anymore. We have upstream support for FreeBSD in libwayland now. Other BSDs have MRs which are only waiting for CI support.
Wayland itself has nothing to do with systemd, many users are running Wayland without systemd.
Wayland itself has nothing to do with systemd, many users are running Wayland without systemd.
I am on Gentoo and using openrc and sway runs fine. The only thing that might kind of rely on systemd is sway-idle which wants logind (or to run as root iirc).
I know you know this, being the sway and wlroots maintainer and all but I figured I would show a concrete example of this working fine.
elogind : Enable support for rootless session via elogind
Maybe I can suggest that this be fixed to reduce confusion.