> manually editing the hosts file was a mostly-obsolete practice by the time the first version of Windows shipped
This claim strikes me as obviously wrong.
Yeah, I've had to manually edit hosts for every work and personal windows machine I've had in the last 20 years, I think. At least desktops.
Particularly since the first version of Windows shipped in what -1985? Contemporary with 4.2BSD? Did 4.2BSD even use /etc/hosts the same way or DNS?