For genres of architecture and landscape, which general speaking require wider lenses, I do agree with you to an extent. (I still think you are at the far end of being too concerned with lens cast and that the current wide line-up is fine for almost all needs, but I digress.) However, for studio and table top work, where you are using longer lenses, having a good deal of shift and tilt/swing is very beneficial.
There are things you just can not replicate in post with movements.
So, the need for technical cameras (with bellows) is still very huge. Yes, the focus stacking aspect of the XF is great, but you don't always want images that look like they were shot at f/64, but may want to manipulate the focus to an extent. Plus, if something is moving, like liquids, focus stacking is impossible.
Having an in-camera shutter here would have been a great advantage for studio shooters.
I do agree that I am in the far end, as I not only look at actual end results but at the fact if the sensor+lens combination leaves the sensor operating in its designed range. It's obvious that newer sensor designs totally disregarded from tech lens lines, and as a side effect of very good progress in dynamic range and color separation it can be somewhat masked. The point is that the trend is there -- for Phase One / Hasselblad it's not seen as a major issue, they look at their main systems and tech cam get what they get, if it happens to work, that's fine let's ride the wave a bit longer, if not, that's fine too. Their long-term idea is that features like super-high resolution, improved perspective reprojection in post, and focus-stacking will eventually bring tech cam users to their main systems. I certainly agree that it's not the same, but some things just fade away even if they had some merit... :-/
Historically Hasselblad has been much worse than Phase One on the tech cam support too. While they had the Kodak sensor and Phase One ditched them for Dalsa, Hassy had a great opportunity to push hard the superiority of the Kodak on tech lenses (especially the Digitars), but they totally missed out. So it's not surprising that they don't do it now either.
But this is perhaps not so much about tech, but third-party compatibility in general, as FPS would be used for SLR lenses (with tech lenses we can use Copal and flash-sync perhaps, if the camera has it?). Hasselblad doesn't have too good history there either, they want you to stay within the Hasselblad ecosystem...
