Why do I have to let Facebook have access? – Monster Busters:Match 3 Puzzle Review

I don’t want to log on with FB. May not be able to continue playing, this is not what I signed up to do. Please let me know why you have changed this. SAme with the monster game that plays hexagon direction. Not nice on your part.
Review by you are not playing fair on Monster Busters:Match 3 Puzzle.