In reply to the list of accidents with spinning:

Recently there was spin training (on a Fox) in The Netherlands. Out
of 20 instructors, only one got the Fox out of a spin without any
unintended maneuvers. Many instructors pulled to early after
stopping the rotation (and recovering the stall), causing a
spin/flick maneuver.
The one instructor that did it right the first time had extensive
aerobatic experience.

All I'm trying to say is: while it might appear from the statistics
that the Puchacz is at fault, other factors can also play a role.

Roel