[Max777]

There are plenty of people who have a fuel cut rev limiter, or a fuel cut traction control system that they use with a rotary, and have reported zero problems from it. And this is with the system banging off the limiter at full blast, the engine stayed together just fine multiple times. (but it was both rotors as far as I know)

Rear rotor cut only: the intake separates the front and rear runners, as well as front and rear injectors. Since all the fuel is cut from the rotor, a lean condition is not supposed to occur, and it should be just like the engine stops running for a sec. This is what I've gathered from 3~4 hours of research on the subject...

Multiple people said that it's a lot more common to blow the car up not because of fuel cut, but because of overboost and lack of fuel... so what's been recommended to me is to upgrade either the fuel system along with the FCD like you said, or to port the waste-gate so that the car can maintain lower boost easier.

Perhaps in your scenario, the engine went lean right before the fuel cut, hence making it seem as if the fuel cut itself made it happen?

The whole debate almost makes me want to take the FCD out of my car and try to repeat the same condition, but with an upgraded fuel system, ported waste-gate, etc... as well just to see if I can get it to happen. Until then I'll remain skeptical.