>This issue report feels like it ought to be accompanied by a fix.

systemd is a stewarded FOSS, which means there's a team behind it, who are getting paid, and develop this software with release cycles, backwards compatibility guarantees, architectural decisions, and such.

These people know better. I usually only prepare fixes for FOSS one-man-show which have little to no maintenance, otherwise I prefer professionals to handle it. Sometimes "suggestion" PR is worse than a triaged issue IMO.