I think different cameras expose differently, so where you might want to record the sweet spot for skin on one, might be different for another. Same with overall exposure.
Monitors that offer false color for exposure, like the Flanders, have adjustable settings for false color for this reason. There is no standard, because cameras arent all the same, and exposure scenarios vary.
The false color for the Ursa Mini seems to be calibrated for the exposure that BM engineers think is best for this sensor, which is middle grey somewhere between 38 IRE and 42 IRE, (I cant remember the exact number) and typical well exposed light skin a stop over that.
Im not sure how the false color works now when you shoot in video mode tho. It should still show the same values based on the sensor, but I think the change in gamma to "video" happens before the false color calculation, so it relocates proper grey and skin tones off into new areas of the false color display from their equivalent values coming into the sensor, meaning that youd change your exposure to compensate for that LUT to set exposure that reads right on the false color display, and that seems wrong. Thats the way the viewfinder did a few months ago anyway. I dont know the implementation in the camera or latest firmware.
I see a lot of very good ideas coming with each new Firmware update. They are making a really great camera. I hope they've noticed this, and have it working well now too