Swiss Alps Gliding: Aerotow almost gone wrong

Video shows an unusual tow along Churfirsten during Föhn. The tow plane makes a rather steep turn, flying into sink. Recovery needed full deployment of glider airbrakes and almost ended up in terminating the tow. Glider: DG500/22m HB-3079 Towplane: Robin "XP" from Schänis Camera: Insta360 ONE X2 editing SW: insta360 studio+Premiere Elements 2020