That's what I was taught to do in a forced landing involving trees, sheds, big rocks - concentrate on the gaps, break the wings off to slow you down.
Also I was taught the technique of forced landing into a canopy of big trees, but I've fogotten what it was.
These days I see a lot of posts using the term Outlanding which, with the glider's controls like air brakes, is quite a different experience to something with a heavy engine confusing the issue and a glide like a brick by comparison.