I'd agree with that. By the look of the Kirk L bracket the synch cable plug is inaccessable, which would make it useless to me.
I use the Hasselblad H quick release plate and I'd be very reluctant to leave it. It is easy to use, positive and safe, critical when you think about the value of what it is protecting if you don't quite fit it right (which is something I did once with a Manfrotto hex plate, cost me a new prism finder for an RZ, but today that same mistake could cost a DB).
It would be great if Hasselblad could make a L bracket which fits the body as nicely as the standard plate. I'd certainly prefer to clip the camera off the mount and on again to turning it on its side when attached to a tripod/studio stand.
What is needed IMO is a 90 H1 QR plate ??
So the QR plate bottom is left on the tripod then one either attaches the camera or the camera via a 90 adapter
I like to be able to get my camera off the tripod fast