Mary its part of the glider pilots brain set
Lot of truth in that which is why I keep banging on about going solo in a glider as part of the PPL course. Even go xc in one.
Yes, I know the practicalites etc etc but I reckon it instills confidence in not having an engine. An engine failure as long as it's not say 100' above a housing estate would be no sweat whatsoever to me or I dare say any glider pilot. Every landing I've ever done as a glider pilot has been with an engine failure and every cable break has been an EFATO.
I know this falls generally on deaf ears but I'm convinced it could save lives.