Interesting debate but a bit too dodgy I'd say on the approach.
However, when I was a fresh faced glider pilot, I often thought that if I lost it in cloud I'd simply spin down an out (assuming decent cloud base). My thoughts were that as spinning is a stable and safe condition for the airframe, it would be preferable to losing control and overstressing the glider in say, a spiral dive. As gliders are very benign in the spin and will recover easily ... the idea does stand up. I never used it though, and having later learnt to fly on instruments I didn't really give it further thought until now.
SS