Brilliant landing! Probably doesn't want to try that technique again though.
I did something like that over 20 years ago with an R/C Paragon glider that had a 10 foot wingspan. I built a straight dihedral wing with ailerons (instead of a polygon wing), (with flaperons), Gaupner spoilers and retractable release hook. I got too far downwind
on final and had to come over some short trees. I was way to the south with little depth perception because of the distance. Trimmed for best glide and saw the Paragon disappear behind the tree line. I unfortunately jerked back on the stick
which was stupid but turned out to work. I saw the glider rear up, and nearly stall into the top of a short tree. There was little forward motion but the glider stayed in the tree and didn't tumble down.
I shinnied up a few inches and was able to lift the glider out with my outstretched arm, forward in toto. You know, the plastic covering wasn't even punctured! Lucked out there.
Came in from the other direction one time too far south and east. Set up for best glide and when it disappeared behind the tops of a cornfield, I waited several seconds and ran like heck to the spot. I got there and there was a stopped car (which was unusual
'cause this was a country road) and the Paragon landed 20 feet past the road and had to have come in over the road. I waved to the guy in the car, he waved back, smiled and went on his way. Obviously he saw the thing coming in and it landed in a large patch of grass next to a tractor parts shop.
One last time I unknowingly hit the trim to "full up" on launch and the high start yanked the Paragon in a steep climb until the chute came of the hook due to the glider being near inverted on launch. The hi-start parachute goes flying off in the intended direction of flight and I have a nearly inverted 10 foot wingspan Paragon glider going slow inverted. When the hi-start chute popped off, I instinctively pulled the stick back to get the plane completely inverted and get the nose down. I then did right aileron, left rudder and witnessed a nice slow half roll to upright and then I could add a bit of down elevator to further build up speed. Was up 40 - 50' and had time to do a left 180 to bring it to a safe landing. I had fun with that thing. Kurt