This is a neat feature, which I didn't know systemd had, and which I recall having wanted in other contexts. The criticism about the 15-minute interval is valid

This is a neat feature, which I didn't know systemd had, and which I recall having wanted in other contexts. The criticism about the 15-minute interval is valid, but that's an implementation detail which, from the sound of it, can be fixed if someone puts in the effort. So while the author may have intended this as a pure criticism, it didn't really come off that way.