Just for the fun.

Does Gnome3 (aka RH) know that they use a technology which is considered
by some a legacy technology?

Me thinks, that maybe by the time s*d is more than just useable it might
also be considered a legacy init-scheme.

Quoting from the Release Notes of the BlankOn Distro:

BlankOn Tambora Goes to The World
[snip}

MANOKWARI
Manokwari is a desktop environment based on GNOME 3 shell. It combined
Gtk+ and HTML5 frontend (Gtk+ is legacy here and would be replaced
totally with HTML5 in the future). It is an evolution from a shell
called blankon-panel. In this release,.....

--- end of quote

What is BlankOn? It is a Debian-based distribution developed by the
Indonesian Linux Mover Foundation and BlankOn developer team.

It's all in the eye of the beholder

Fred