@b4bbc4d3 @2c841a34 @1c71bd5c Meta most likely sees an upside for their primary business model (behavioural advertising based on surveillance of people), e.g. access to federated index data.
It is naive to assume that they have any stake in the Fediverse apart from that. Very likely federation will be based on dedicated contractual agreement with other instances to protect their interests. I would not stay on a server buying into that.