You'd expect that a loose switch would have been noticed when the seat was being moved prior to flight(s). Also interesting that Boeing says it's a known issue from 2017.
I still don't really get just how the pilot or the seat impinged upon the yoke to such a degree, although I did hear one comment to the effect that he had his legs crossed...which is somewhat hair raising in itself.
Anyway, now we have two interesting tales to choose from. The wayward electronics, or the rampaging seat.
