Google is very enthusiastic it seems about things which force users to use Google Chrome, and very unenthusiastic about users doing anything easily from the command line because it has the notable quality of removing a place you can show ads.

And what I note about the whole OAuth ecosystem is that you wind up having to puppet a web browser in order to get through sign-ins and the like. "Oh but you do it infrequently" says every single company implementing their own bespoke way of entering a username, password and TOTP while salivating at all that unused <div> space for ads.