I've just read the G-FORS report...
The instructor had almost no time on type.
I started my PPL training on the dreaded PA38 and spent a lot of time doing fully developed stalls where the rudder was used to keep the wings level. Usually the LH wing would drop, and quite rapidly.
It was fun and eventually I was doing it really well but it was quite pointless.
If you spin on the base to final turn you are dead anyway, and you should never get anywhere near a stall never mind a spin in any other phase of flight except possibly wind shear.