I'm sure it's all a matter of personal preference, but I don't like setting the mirrors like this at all, especially on the 'Z.
For one, the split down the rear window can make it hard to see behind you with the rearview mirror. Having the side mirrors set up in the more traditional sense allows me to see behind me in a pinch by leaning a bit.
Also, if you need to change lanes, you need to rely on your rearview mirror to see if the lane is clear. This becomes verry difficult if someone is tailgating you (very common in Florida), and it becomes even trickier in the CR-Z with its huge C-pillars. It becomes impossible if you're in a standstill, such as being in a turn lane and realizing you need to go straight.
My 2014 'Z also has the sliver mirror on the driver's side, but it distorts the image so much that it isn't very clear what I'm looking at, nor where the other vehicle actually is. Also, it's missing on the passenger side. Again, I'm sure its all just preference and getting used to it.
My solution was just to get those blindspot stick-on mirrors for the corners. I recommend getting high quality ones, the cheaper ones have weird reflections and are very unclear. I got some adjustable ones that are wide enough to cover all of the sides of the vehicle. Mine are pointed down a bit too, so parking is a breeze.
As for the ultra thicc C pillar, it only affects me when I'm trying to join a road at a 45 degree angle (such as when turning left onto a road with a median). For me, this problem is uncommon enough that I just stand on the dead-pedal and lean over the passenger seat to get a better view. Not ideal, but also not a situation I would trust to a camera.
If I remember correctly, I believe
@yayuuu added some cameras to his 'Z, but I believe the intent was for parking, not for blindspot monitoring.