Where does it say anything about creating an account via Google or FB? Or creating an account at all? (Except for on itch.io, which is a suggestion for hosting rather than Ink itself, and also doesn't seem to require Google or FB).
I was obliged to open an Ink account for some text compositions a few weeks ago, and yes, the only way by which I was able to do so was through a Facebook or Google login. There was no other option.
