Yep, it's all possible. Most of the other resorts do a pretty good job at this. And WDW has gotten better. DLR is sadly behind.
Truth is, it can be done. In this case, and many before it, they didn't do what was necessary so that it could happen. And for, I am sure, several reasons- money, priorities, etc.
Almandot is right, if it was to be done, it should have been taken care of before hand- particularly when contracts and all the legal stuff was worked out. To do it now would cost so much more. I talked about this at length with Randy himself. Even he has put pressure on DLR to get their act together.
And there are are new ways of distributing. We all have our opinions of Itunes, but look, Finding Nemo- The Musical is there for purchase. Truthfully, a cd sold only in the parks is not the only way to go about it anymore (though hands done its the best). Just saying, doors are open, opportunities are there- DLR, or someone somewhere, thinks it's not worth it. As for Finding Nemo- the Musical, someone in DCE or merchandising or somewhere thought it was, and two different ways of distributing were used. How 'bout that!
If only they truly knew how many people in 20th Centure Music shoppe ask for the POD music...if only!!!
BPB I can see as the exception due to it being music comprised of stuff that isn't Disney owned, thus rights and royalties for cd release would probably be cost prohibitive. yet still...some other places worked this out...of course, I am sure things are different overseas.
The more they fail to officially release parade and show music for DLR productions, the more leaks there will be and illegal sharing will continue...no other way to put it. And to think, that is money that could have gone in their coffers...