I was taught in the '60's to do curved approaches like that, in Austers, but with a hefty side-slip, full flap and no power, roll out at 20', and thus a much steeper descent. You had to hit the touchdown point accurately, or go on practising until you could do that very time.
My instructor believed in teaching students to fly, really fly, not just to pass the PPL GFT. One result was that forced landings for people he taught were no big deal.