Looks like it's going to be mostly news archive footage. Which could be interesting I suppose, but don't expect them to release any of their entertainment backlist this way. Auntie may be non-commercial but they she still has a fiduciary responsibility to get some value out of the materials that the licence fee-paying British public funded.

If it's under the CAL, how can they prevent it from getting to the US?

I suppose you mean they arn't bothering to host it for non UKians.