That doesn't seem unreasonable - the target for the Air is for people for whom battery life is not the key. I cannot imagine streaming 22 hours of video with no access to power - even on a flight from Oz-UK I would have powerView attachment 2545021
So you have to use the MagSafe Battery to have the same battery performance as a Pro Model.
Me. I take snaps not photos so I don't need the best camera system - and even the system they have for front facing will make video calls better.Who is this for?
I either sit at my desk (home or office), sit in my car or walk around - whilst seated I have power if I need it. Whilst walking I don't walk for 22 hours straight watching videos. This is perfect for me.