it has long baffled me that a pilot who completes all their periodic assessments in a twin never has to demonstrate the ability to judge a FLWOP –
And that is quite true for multi-engine jet transport full flight simulators where you can't hurt yourself if you prang.
For example the Boeing 737 Quick Reference Handbook covers the case of Loss of Thrust on Both Engines. It then tells you to try and start one of the engines. There is no further advice on what to do if neither engine starts.
While the airline simulator is the perfect vehicle for practicing dead-stick landings including ditching, you won't find those profiles in any type rating simulator training syllabus. No shortage of autopilot coupled approaches though..