So it is.
The HY6 never had a chance.
No expensive camera system, 35mm to medium format, can make it on a professional level if it's not in rental and doesn't have a full lens line of autofocus lenses.
You can work around not having leaf shutters, you can do the uncomfortable without right angle grips, but simple things like prisms, wide angles, autofocus that is accurate and the ability to rent specialty items or backup in major markets isn't an elective, it's a must.
The HY6/AFI came out with a lot of fanfare, pdf's and promises, but it never had any penetration in the no excuses, heavy production professional world, because it had key elements missing.
This was true in 2008 more true today where production expectations have been doubled.
There was a period where all of us were willing to believe and take the chance that everything promised would come, but not anymore, it's just too competitive at all levels to take any chances.
Also Phase One wasn't on board with the HY6. The medium format market is too small to exclude anyone and the cameras and backs too expensive not to be complete the moment they are announced.
So they can do all the petitions they want, I'm sure a few collectors will hang on to their cameras but in the world of professional balls to the wall photography, for medium format it's Hasselblad cameras (maybe not always backs, but cameras), Nikon and Canon.
That's it and probably always will be.
The only exceptions to this is Leica who seems to have an affluent customer base and RED who right now offers a cinema style product that no one can match on price, though even RED has cameras in rental and using a lens mount that allows for almost any focal length needed.