Thanks

Well, the systemd guys seem to view backwards compatibility as important. If you want to use systemd pid1 just to fire off your old SysVInit scripts and not use their new config files, that's a design goal. If it doesn't work, file a bug report.

And Wayland is being developed by the X guys. In effect it's X13 (seeing as the moniker X12 is already taken). So again, any failure in compatibility is a good candidate for a bug report.

Cheers,
Wol