Such deliberate mishandling seems totally inappropriate and positively invites an incipient spin.
That risk certainly exists, although the FAA normally requires recovery to be performed at the higher airspeed of either Buffet, or Stall Warner. The aircraft is not normally flown to the actual stall at PPL level.
The thing being checked is the candidate's ability to enter the manoeuvre in a controlled manner (with particular reference to the configuration and the ball), and to exit it with the appropriate control inputs in the correct sequence. Not for nothing do we find spin awareness as the next section on the same page of the Practical Test Standards document.
2D