I think it says on the app that they view your video if they think the application is promising.

I thought it says they're likely to view your demo if the application is promising... and they like viewing videos.

You're right, I must have gotten them mixed up.

But still they say they usually look at the video, and I think this implies that unless the rest of the application is good enough to justify spending another minute or two watching the video, they probably won't.

But then again it might just be used to give you another chance if your application is crap.