JEM60
I believe that event was prompted by a rollback due to an oversight in not applying the throttle friction locks. Believing that he'd suffered an engine failure the pilot misidentified the 'failing' engine and reacting instinctively secured the wrong engine.
As for briefing prior to departure.. yes, most do that but there's a huge difference in repeating by rote a departure brief, and actually psyching oneself up to be primed for an EFATO event.
Having spent a few years of my career as a FlightSafety Instructor I know from experience that even when knowing what's about to happen pilots regularly need more than one attempt to deal with an EFATO event successfully.