Earlier quoted context omitted.
force protocols to be open would just about do it. People would trivially write cross-service applications on top and we could have an internet where people can freely move data around. Apple and Google would be delegated to the backend and users could choose the clients they want. It's honestly so trivial and uninvasive of a regulatory matter it's ridiculous. We're stuck in the 19th century railroad industry.
So, someone (who?) comes out with a standard, and then everyone just freezes capabilities then? Nothing evolves? Or if it does, it does so very unequally? Already in this announcement is the non-transfer of Live Photos because presumably Google doesn't support it. Apparently they also have a 20k per album cap, which at that point you get different behavior than you're expecting. These are just a few examples of where…
every client provider can do whatever they want, that'd be the beauty of it. Someone could write a stripped down, privacy respecting Facebook client and charge users five bucks instead of running ads, if that's what users want. Someone could offer a chronological news-feed free of algorithmic meddling, or one that you can fine-tune however you like. That'd would simply be developer and user choice. Just think of RSS-readers or podcast apps or email clients. They're not all equal, but that's a feature, not something gone wrong.