Facebook has explicitly expressed sorry to its all users over the face tagging feature

The new profile pages should be available to all of Facebook's more than 500 million users by early next year

Facebook has explicitly expressed sorry to its all users over the face tagging feature. They said that they should have informed it's users properly before making this feature available globally. However they also said that user can turn this feature off as well. The FaceBook users major complain was that why this feature was explicitly set to on for their accounts