"Then the BIAB program must be modified to accept them because it accepts them..."
BB accepts UserTrack @ 48/24 and RB does also now, so that's a step to getting there.

And yes automated, like the Yamaha piano that records the midi as well.

They will get there, I think there will be big leaps happening now.

In the Share your Band-in-a-Box® Tutorials, Blog Posts, and Reviews! Morrisman gives it a good review but mentions the lack of support for genre's like hip hop R&B.
Not that I'm into hip hop but to attract younger users it might be a good move.

https://youtu.be/h6QojyJVOf0?t=3m6s