Ed, everybody...
I wasn't knocking anybody's choice of camera. Remember, I too, own RB and RZ's. I was just mention how tired I get of hearing people trashing Hasselblads & Zeiss. I too, know of quite a few photographers who won't allow assistants to load ANY camera back. Period. They only load backs on their own. And, they shoot about 50 rolls a day of 120.
Plus, I wasn't pushing equipment choice on anybody. Again, again, again, I just was just preventing unfair and (usually) biased charges against Hasselblad. I'd do the same if somebody was unjustly charging an RB/RZ.
Since I have friends at quite a few camera shops, who often tell me occurances of Hassy mishaps, the conclusion commonly seen is that jammed Hassys are usually the cause of 1) un- or mis- maintenanced equipment or 2) unexperienced / beginner stage user problems with the equipment.
Also, I've never heard of a 20x series every jamming. And, I've never seen any 503CXi/CW jam with winder. I take my 503's hiking in rain, sand, snow, etc and never have a problem.
Not to mention that RB/RZ has it's own problems too. One of my assistant was picking up my RZ by the prism and bumped one of the prism locks. Ooops. Prism in hand, camera on floor. Then, there is the changing film while the back is still on camera...the insert sticks to the shell, then falls out onto the floor as the film unspools a bit. Or, the drive shaft under the bellows gets a bit of sand in it and grinds to a halt while tripping the shutter in the field with full extension.
Again, a bit of maintenance fixed all of those problems. It's like buying an old Craftsman or some antique hammer from flea market with a chunk missing out of the handle: instead of getting a new handle for it, some people just use the old-*ss thing until the head breaks off and cuts them wide open one day. Then, they'll complain for years to the note of "those junk things will break and leave a gash on your ____ like this (showing cut)...
Yep, it's a tool. And just like any tool safety/user warnings should be posted: "If broke, fix it. If not fixed, don't complain when it doesn't work".
(BTW, a friend of mine who has been shooting for over 35 years just commented that: "just because somebody may know a camera inside and out, doesn't mean they know how to USE it or fix it.)