A camera system is a great many things put together in a package that can take a picture.
The sensor design, bayer design, IR filter design, lens coatings, lens element designs, lens shade, the choices made during readout of the sensor, the dark frame (if any), the debayering, the noise handling, the color engine, the color profile, and the tone curve all have a part in the final look of the image*. This is especially true with medium format where both Hassy and Phase One have their own raw processors which are developed in synergy with the hardware to get the most out of the joint system.
Any argument about a specific component that doesn't understand the holistic system is more than a specific component is inevitably going to be pretty unhelpful.
*Obviously the stuff in front of the camera (subject, lighting, composition, moment etc) matter even more than the camera system. But that stuff can be equalized more or less. Though I maintain that whether Vulcan-logical or not, the photographer is influenced by the equipment they use. Give someone a $10 glass of wine and and a $100 glass of wine and watch whether they spend time to truly examine, taste, and enjoy the wine to their fullest capability.