The HDMI chip supports CEC and the verification tests pass, but it’s not actually used for anything in the product. I will get it checked whether at least power off functionality can be implemented (power On will be tough, Philips has strict standby mode power requirement much stricter than EU guidelines).
Also, the feedback from various suppliers and my own experience is that CEC rarely works correctly. I’ve had my lamp-based projector (another brand) turned on by FireTV randomly multiple times, once while I was away on a holiday… 3 days it was on till I got back 
Recently while working on a flagship 4k projector we wanted to use CEC exclusively for all control but the idea got shot down by the Systems guys since it was totally unreliable. Just putting out my thoughts on this.