I think the most fun part with Google is that if some wayward algorithm decides it doesn’t like you, along with nuking your app and developer account it will probably nuke your 20 year old gmail, your kids Google Drive accounts, your wife’s YouTube premium, the Adsense account of some company you worked for in 2008, and disable your Nest cameras. And you’ll never reach a human to sort it out.
All service providers above some scale should be obliged to create a transparent processes or be taken for external jusges. Even better: all providers of services with more than 100K users or 10% of country internet users should be forced to provide API to export / import data in open format.
It would be a lot harder to erect walled gardens if you're only serving a small subset of users - they would balk and leave at any attempt to prevent them from interacting with others outside of the ecosystem, and it would be a lot easier to do so.