OK Whatever. My 23 years of Soaring and Instructing full-size gliders and sailplanes was perhaps erroneous. We called it sideslipping. Without an engine, I tended to come in a little high often and used spoilers, flaps (89 deg.), or whatever, and if that wasn't enough sideslipping was the answer. Every time I did it and also instructed it, the longitudinal access of the sailplane was at an angle to the runway. Full rudder and as much aileron as needed to keep you heading straight for the end of the runway. I used to enjoy it so much in the trainers that I believe I was about to touch a wingtip down on one flight before I got out of the trance and straightened up.
Yes, you had to keep the nose down/stick forward a bit during the slip or you would stall. Not a good thing when at approach altitude.
Of course we had to correct for crosswinds also but often just pointed the nose upwind a bit to compensate and then straightened out just before touchdown, or put a load on the wheel bearings if you didn't.