Exactly, for some reason the room control driver doesn't seem to understand the receiver controls volume in the room. So when I say "Alexa, turn the volume to 50 in the living room" she says ok but nothing happens. If I say, "Alexa, turn the volume to 50 on the TV" she says the device doesn't support that, but if I say, "Alexa, set the tv to channel 1090" the channel changes fine. same with power on commands.
I looked at the room control driver and I don't see a way to set the configuration so the room sees the receiver as the default audio/volume device