Yes, emacs keystrokes became kind of cli lingua franca, which apparently many do not know. I don't remember my self ever read about those supported explicitly anywhere, but accidentally I found out long time ago and then whenever I try new systems, programs and whatever I try which keystrokes do work. Quite often at least some work.
It's GNU Readline[0] or similar. It's all over the place, on Linux at least. Being GNU it defaults to emacs, but the vi support is also excellent. The first thing I type in any foreign bash is 'set -o vi'.
Yes it's GNU readline, but note that the very Wikipedia link you gave explains that it's GNU readline that re-used those shortcuts from Emacs, not the other way round.
So it's not wrong to call these "Emacs" shortcuts.
