And I do think the lack of random setlist and challenge functionality of the songs will bug people. It's easy to say that people can just whip up a setlist, but many of these same people balked at ever keeping any sort of notes to indicate what their star count on a song was since the game didn't track it for them. Perhaps that's a bit more involved than the making of a setlist for these, but the same principle applies.
On a personal standpoint, I like the random potential for one of these songs to pop up. They are simply not going to be purposefully picked in setlists as songs that people do know, either in our household or in the majority of others. Random setlist compatibility gives these songs a "fair shake" at getting their play. Anyway, I've said my piece -- this issue is going to bother people, some significantly, and I think it hinders RBN's integrated place in the platform.