NO AirPlay / NO Apple TV - WHY ???

NO AirPlay and NO Apple TV - Why does Xfinity prevent use of this wide spread mobile device functionality? I thought that this app is intended to give us "more to stream on any screen" - clearly thats not the case. Why discriminate against Apple mobile devices? This is a severe app limitation imposed on Xfinity customers that choose Apple product platforms.

Cleo59 about Xfinity Stream, v4.0.2