This is them trying to strangle Graphene and LineageOs. We desperately need an ecosystem where manufacturers are legally compelled to publish the source code for their drivers and similar so as to make it easier for alternative Oses to exist.
Android will soon become fully closed source. The writing is on the wall.
No, neither of them register as a blip on the usage stats and both have, and will continue having, priority access through OEM partnerships.
The drivers are legally required to be, well not published, but the source sent to anyone who asks.
The founder of GrapheneOS commented on this a few days ago here on HN, and basically said it doesn't impact GrapheneOS.
https://news.ycombinator.com/item?id=46550366