Paul and Rick make good points. Let me say a couple of things from my view as a consumer.

While I seldom like everything on an album I often find that after repeated listenings there is a cut that grows on me. I don't think I would find those cuts if I had to pick and choose based on .... (Hmmmm.... I was going to say based on listening for a few seconds and then realized I don't know how I will be asked to make my choices.) In any case those gems that grow on me might be lost.

As far as the thematic approach is concerned this new format could be a good thing. An artist could produce a thematic work that was only 3 or 4 or ?? numbers long and market that as a single file. No need to get a whole 72 minutes of material together.