Are you saying Facebook don't have a term in their ToCs equivalent to "Facebook reserves the right to stop service or remove data for any or no reason at any time without any notice"?

Edit: they do.

https://m.facebook.com/legal/terms section 4 (termination):

> If you violate the letter or spirit of this Statement, or otherwise create risk or possible legal exposure for us, we can stop providing all or part of Facebook to you.