mustacc: Thanks for your information - that further clears some of the fog that I thought I had encountered. So at the moment it is basically wait and see ... and probably trying to kindly ask and convince somebody on the developers list further down the line

I realize that's not an ideal answer. I also know not everyone checks it so bringing things to folks attention does usually help. Discussion on IRC (here or #illumos) also often helps that a little bit as well if it's an area folks know.