If there was one thing I could ask from PG (individually and collectively) it would be for transparency--especially on this subject. (Note that I am not asking, although I am very curious.)
My thinking is that there are very good reasons for what is and is not done with BIAB. I am sure that a lot of the advancements are driven by marketing, and that a lot of what doesn't happen is determined, first by what resources are left over after taking care of market-driven priorities, then by technical limitations. That's just a guess.
Offhand, I can't think of another company that is responsive to the degree that PG is. I know that we are taken seriously. If you have been around long enough you know that many suggestions made here are incorporated as new features. A lot of them. If you haven't been here that long, hand around and watch.
Apart from my rant about Rewire, I have probably been most vociferous in my call for a rework of what everyone in this discussion agrees is a cluttered interface. Specifically, I would like for users to be able to create a customized menu of Essential Features, and not have to wade through the rest.
That's nice. I buy a new version about once very three years (and use maybe 5% of the features available). How much attention should they pay to me, as opposed to a pool of institutions who are buying multiple multi-user licenses on a regular basis?
So I'm torn. I want "my" feature because it is important to me. On the other hand, I BIAB has wrought a revolution in my musical life and. PG have certainly never disappointed me. In fact, they have delighted me in some unexpected way with each iteration.
Patience, Grasshopper.