Activision Blocks SharePlay For Call Of Duty : Advanced Warfare For PS4

The PlayStation 4 edition of Call of Duty: Advanced Warfare has block the Share Play feature for PlayStation 4. Activision's block on Share Play functionality comes more than a week after Sony claimed the feature would work on all games. For those who don’t know, Share Play allows two PS4 owners to play the same single copy of a game over the Internet. The owner is the host, and can stream gameplay footage to a guest console. The host can relinquish control of the game to the guest too, effectively giving another user the chance to play without paying. Share Play is limited to 60 minutes per session. The SharePlay feature also doesn't work for last years Call of Duty Ghosts. Does this seem like a typical Activision move to you ? Why do you think Activision would do this ?