CTR, allow me to go further. In thinking about my response above I can see where it might be misinterpreted.
The Bell folks certainly have had meaningful experience with FBW technology. When the FAA advised them that they wouldn’t be certifying a unique trim controller, Bell could very well have responded ( if they so desired to ) that they were wrong about that and proceeded to explain why, and how their system would answer all the safety and human factors considerations etc. They have the experienced and knowledgeable engineering talent to back that up whereas in the rotary wing/vertical lift area, the FAA apparently does not. I write “ apparently “ advisedly, because if they did, three decades after FBW appeared in vertical lift, they would have amended the relevant certification requirements and qualification procedures, and they have not.