IMO RZ dashboard layout is not designed to accommodate the yoke at all. It was designed to accommodate regular steering wheel which is quote obvious as the wavy driver side of the dash gives it away. At the time of design stage they probably weren't even sure if yoke would be even a thing during the RZs lifetime. When yoke is attached to this already top heavy design dashboard its weight gets even more prominent. With regular wheel the actual upper part of the rim hides the upper part of the dashboard and directs your eyes through its opening straight into gauge display. With yoke there is no clear focus, it looks detached and the upper vents become prominent design element. They dominate against the yoke but they do not dominate against the regular wheel.
Hoop is there to divide the drivers display from rest of the dashboard. That's how it works. With no hoop they have to level the dashboard and make is the height smaller. Because of the central screen position it's impossible for them to do so in this design layout. Infotainment screen requires to have something on top of it unlike in RX but regardless of RZ or RX the infotainment screen has it's height and in order to integrate into the dash, the actual dash has to be thick especially on the left hand side of the wheel. That is why they have been putting big left hand side vents as an excuse for the design element to make it look like sum of all parts.
Take a look at the AFEELA. It's interior is made with yoke in mind. It's sterile but drivers focus is right where it should be while the actual center piece of the dash is thin enough not to dominate the yoke. Rule is simple but hard to pull off: You shave off the steering wheel, you need to shave the dash thickness/height too for balancing purposes.
