It is not informed consent even if they "scroll to the bottom and click accept". Our industry has conditioned users to click yes/accept on any and all popups that block their path to doing whatever it is they're doing (using the app, playing the game, installing a program, etc).
I did, and I said "hell no", and I was outraged when similar firms (Pebble?) tried similar stunts. I'm not excusing Facebook for their invasions but I'm also not excusing the people who explicitly opted in to such violations and then acted shocked when the data they offered was used.