Don’t know about the former, but the latter has happened to a RIO I met during his transition training. His pilot had a heart attack in the groove. They hit the ramp, RIO ejected both from an F4J. Can’t recall if the pilot made it or not.
In F14, there are no flight controls in the back seat, no dual control trainers were built, so the only recourse was to eject at some point, where it made the most sense.
RIO’s had balls of steel.
Hopefully, the sim will revert to “auto-Jester”, or maybe even give the option to kick your incompetent human RIO out and let Jester do the work.