Integrating Facebook (which is known for spying on people, and each user of facebook should be aware that he/she IS indeed the actual product being analized) as core part of a phone operating system is a fundamental mistake if it indeed was intended to be such. If so, complaining about a minor, like a facebook icon in the people live tile, is like complaining about the tip of a gigantic iceberg.
It's the details that matter and also it's the details that can be fixed. Just integrate an option to disable facebook completely and have it gone form the users device. If that is not offered, it is indeed forcing stuff upon the user.
As Jacob Applebaum puts it: “If you have to ask for privacy or beg it from a master, it may not be granted (as in this case by Microsoft) and then you will know that you are not free”.
Interview mit Internetaktivist Appelbaum zur Sp?haff?re | tagesschau.de