SNS3Guppy
I don't say it not possible that "mom and pop" schools can train good pilots, there are good pilots everywhere and from many sources, but if you want to play the odds--the military and well-run, disciplined programs like ERAU and UND do a more reliable job, are more consistent and less willing to let the poor learners pass. Any of these sources, do a far better job of providing the knowledge base needed, ON AVERAGE.
While I cannot recommend formations under wires, all that "hands on" flying would have probably resulted in better stall recovery that a firm tug on the column as shown in the NTSB animation.
WRT stall training, by the results, it looks like the Gulfstream Academy hasn't provided very good training to any of pilots.
GF