This is an interesting post and view, and I am glad that I am not the only person who shares it.

As I mentioned, my use of BIAB is fairly limited, mainly jazz/blues/rock backing tracks to play along to, to learn songs, licks, arpeggios etc. Despite having 1000s of styles available, finding something "basic" to play along to is always a struggle, and I tend to use the same 2 Blues, 2 Jazz and 3 Rock Styles... Occasionally I choose different drums.

They are indeed busy (in my opinion). From time to time I venture out to look at the guitar lead sheet with the hope to perhaps play along to it, or learn from it, but pretty much all the ones I have looked at are impossible to play (well, at my level anyway). I have often thought if anybody would actually play this.... but then I am sure that they do, the RT did get recorded.

About the bass - I am often turning it down because I find it distracting, too much going on :-)

I am happy with what I have, but I often now use iRealPro on my iPad to play along to, basic but serves its purpose....

This is all just my personal view, I love BIAB and wouldn't want to make music without it. Best software I've ever bought :-)