Are you intentionally missing that the point is the fact that any one of them can use the portable init system that isn't systemd?

> No, they should turn systemd into a real standard. ECMAinitd :-p

Well systemd can only work on linux, by design. So every standard compliant init system would require that it package a linux kernel. That is not only moronic, but with history as our guide: would directly result in never patched, network active, embedded software.