Personally, there are other failures which are far more likely, that are fatal if mishandled. I'd rather spend my sim time on those scenarios
That wasn't the opinion of the pilot who dead sticked the Air Canada Boeing 767 (The Gimli Glider event). During his speaking tours after the event, he said he wished Air Canada had given him at least one practice dead stick landing in the simulator to give him the skill and confidence to pull off that successful forced landing.
Pilots are exhorted ad nauseum to hone their skills of Threat and Error Management, CRM etc during simulator tests. A dead stick landing has all that rolled into one package. A crew can learn more about those skills in real (simulator) time than spending hours listening to boring lectures and Power Point presentations on TEM and CRM and similar buzzwords of the day