Embrace, extend, extinguish.

You are either innocently unaware of how it works or just dissassociating from reality. Meta has to compete with Fediverse if it can't directly harvest user activity for marketing and advertising systems. They quite obviously will (have to?) do everything they can to influence technical decisions that allow them to steer the protocols in a way that is profitable rather than for the good of the end users and communities.

They ultimately will seek to build walls around their development and services on their terms and leave others not part of their profitable ecology of development outside of those walls. They are a publicly traded corporation, this is just a normal evolution in for-profit corps, even if current employees do act as positive curators of community engagement.