I don't think you're wrong or anything,I'm just amazed that a camera would take the supposed benefit of 120 film,a 6 cm side,and shorten it,while still using 120 film.Seems like it would be easier to use another format.Having said that,I'm fascinated by strange old cameras myself-Good Luck!
One body design was used for 35mm, 127, and 120 film to cut production costs.
Warning!! Handling a Hasselblad can be harmful to your financial well being!
Nothing beats a great piece of glass!
I leave the digital work for the urologists and proctologists.