If you need a Web page, to protest being at the mercy some company because of dependencies out of your control... why would you gratuitously put that Web page at a Google Docs URL (which, again, you don't control)? Even three decades ago, you could pretty easily self-host this Web page and the Web form, in a way that you controlled it.

Which prompts a thought...

I'm sure there are much better reasons for dependency on a video game foundation. But -- seeing other aspects of ordinary software development practice (e.g., ridiculously unnecessary massive complexity, numerous shoddy SaaSes, and hundreds of unvetted JS or Python package dependencies casually pulled in) -- I wonder how much of the video game dependency decisions similarly have little thought put into them? Or are video game developers smarter than most other developers?