Thats a bald move from facebook ,after all negative feedback from crypto community.
To be honest, that doesn't change my mind much - they still are trying to please their auddience rather than push crypto technology
They have big market that's why they are pushing to have their own it will bring to them more income in the future so why do you think they will not push it?
For crypto technology there are many project or university having that option for those who want to study deeply on nlockchiain technology.