People's protest was other fb data harvesting. Even if they didn't understand the specific changes in the tos, they had legitimate grievances.

Which is to say, "you're only allowed to me mad about a change when it's rolled out" is not a theory I buy into.

The reason the exodus happened was not "because" of the privacy change, in the same way the dam didn't break because a squirrel running across knocked the "last piece" loose.

Years of negligence are responsible.