CM
I have no personal experince of the latest mil FBW systems but those who do lead me to believe that they fail normal. In other words you just lose an element of redundancy.
Re the B's auto eject LM did not try and reinvent the wheel and went to the Forger people. There the system has never failed and been used some 30 times. The Forger trigger was attitude when in the hover mode (which rather limited airshows) dunno wot the B uses.
J