Would it be a safe bet that you regard this as thinly disguised assisted suicide?
Please register my vote in the "yes" camp.
I know nothing at all about flying jets, but in my mind this recovery technique is unfortunately typical of the FAA's on-again, off-again confusion about which controls airspeed: pitch or power.
IMHO, "recover at the stall warner, by adding power and maintaining level flight" is simply muddleheaded (this comment is not intended as a criticism of F3G, who is just reporting the nonsense spouted by an "instructor"). Try it in a sailplane and see how well it works!
See further
here, and chapter 9 in
Stick and Rudder.
Of course, I know that
things are not quite as simple as my post implies. But essentially, any stall recovery technique that emphasizes power to the exclusion of pitch is, in my mind, fundamentally flawed.