Maybe do a survey down the local shopping mall or out on the street, there maybe more users there ?
I think because of the many issue most users don't bother with it if you can simply drag the tracks from the main Biab app into your DAW.
I have been trying very hard to get it made into an all in one, instant generate, play direct EZBBvst but it's very slow as it still relies on the old BBW4 running in the background that takes ages to get programmed for the JUCE vst.
THIS IS THE MAIN ISSUE WITH THE PLUGIN
am I wrong ?
EZDrummer was released and just worked from the get go.
EZD just has a single app.exe standalone or a vst.dll that accesses the Midi Drums library on the hard drive.

https://stash.reaper.fm/u/ReaTrak (Scripts for Biab Reaper)
Open SGU in Reaper Instantly