I get your point. Mirroring isn't required now though maybe there is a slight quality difference with a dedicated airplay stream? Anyone here know if there is a technical difference between watching something using mirroring and using the airplay button within an app?
Yes, mirroring is not the same as an "Airplay stream". When mirroring an iPad, you get a four thirds picture on the TV, far from full screen.
Although mirroring had to be turned on, This was no mirror of the iPad's screen, but only the video, and full screen on the TV.
(which is the same as what we have with the new Netflix app and Airplay, when it agrees to work)