As a user since the 1990s and now in my 70s, I posted about the new stylepicker not being as easy (for me!) to use as the old one and got a bit of a telling off for not taking the time to learn a new tool that actually didn't offer me too much in the way of useful improvement. But as an old and existing user i'll get used to it and i'm not holding up progress.
The BIAB GUI is so complicated because the functionality of BIAB has been tweaked so much to meet the demands of users who want BIAB to be a DAW not simply an auto accompaniment program. That is PG responding to users not ignoring them.
Giving BIAB so muc h in the way of new functions has meant a complicated and confusing interface and I understand why people don't easily get used to it.
But if you combine BIAB at its simplest with the extra functionality you get with RB (or well known DAWs like Reaper) generating a basic track is still quite easy.
as PG say in their blurb.........Band-in-a-Box® is so easy to use! Just type in the chords for any song using standard chord symbols (like C, Fm7, or C13b9), choose the style you'd like, and Band-in-a-Box® does the rest... Band-in-a-Box® automatically generates a complete professional-quality arrangement of piano, bass, drums, guitar, and strings or horns.
That is all you need to do before you transfer to a DAW - which is the work pattern a lot of us use.
BIAB only looks so cluttered and uninviting because PG has responded to its users who have asked for so many bolt on functions.
A real example of 'be careful what you ask for'. Do the 'newer looking' programs that 'young people' like actually do what BIAB does? It's an amazing program that is as complicated or as simple as you wish to make it.