It's a fantastic product for locking the organizational knowledge of countless teams in the data centres of the biggest (publicly traded) enemy to privacy the US has ever seen. This would be a disaster for science, would suck the life out of the TeX ecosystem, and would be a perfect acquisition target for evil science publishing parasites (you know the names) to further strangle the scholarly discourse in the name of convenience. If the files don't live in my hard drive and aren't published to my web server, I don't want it and will fight against it.

And before someone asks, yes, I feel similarly about GitHub, and wasn't the least bit surprised when it sold itself to the self-declared enemy of open source of previous decades (now reformed, of course!).

Yes, these things are convenient, they have great UX nudging you toward what serves the interests of whoever owns them. I'm not arguing against the usability of Google Docs but against transplanting that model to a community built on entirely different principles.