I don't see this as price shaming. I see a HUGE "we don't trust these folks to begin with...". Facebook is cancer for humanity. It gives 1 and takes 50. And then dilligently finds ways to use that 50 to hurt you, for their profit. I wouldn't trust any sensitive information with them. And especially CERN? These guys have info and tech to end life. Some random admin with god-mode that will get bribed by Saudis/<insert other criminals/dictatorships> wouldn't hesitate providing them with any data.
For some organizations, the value of their data/information is worth much more than the £€$5k/10k/50k that their collaboration tools cost. CERN is one of them. I prefer to pay £€$10 per year more taxes so they don't use scum like Facebook.
(angry words yes, but hey.. they tried hard to earn them feelings - perhaps if they evern become less scum-my, maybe people will trust them more)