Ed is looking at expanded envelope exercises to orient pilots toward recognition and acceptance of unusual attitude in the prevention of LOC rather than in the recovery from LOC. I am using safe maneuvering flight techniques to give pilots a different orientation, that of low altitude work including takeoff and landing and pattern. Energy management borrows from the expanded envelope Ed is talking about, greater pitch up, greater pitch down, steep banks, and such.
High altitude orientation softens the blow of unusual attitude because recovery is possible. Confirmation bias is going to make bureaucracy more likely to find stall spin, say, if that is what they have been finding as the probable cause often. The use of the term unusual attitude is a bias in itself toward limited pitch and bank. The airplane doesn't care about the attitude so long as the pilot allows the safety designed into the airplane and so long as he uses the controls properly to do what they were designed to do and so long as the pilots manages total energy available without engine thrust bias.
Acrobatics goes a long way in reorienting the pilot to some value in unusual attitudes, but is itself biased toward recovery rather than practical use of those attitudes. And entry into and out of the maneuvers involves full deflection of the controls. Like a closed or fully open throttle, the maneuver value of a control to manage glide angle and rate of descent for example is lost. The value of unusually high pitch up, with zoom reserve in airspeed, is to quickly, and with the outcome not in doubt, zoom over obstructions and to initiate the very effective trade of airspeed into altitude and to slow down to start a very tight diameter turn. The value of the unusually steep pitch down from this energy managed pitch up, if we release all back pressure and allow the nose do go down as designed, is that we quickly regain that airspeed given up in the pitch up. The value of the unusually steep bank and allowing the bank to get steeper because of dihedral is that a greater percentage of the main wing is thus diverted to lift in the horizontal direction causing much faster rate of turn. Rudder usage has to become more pronounced than in altitude maintaining level and even climbing an descending turns because fuselage dampening of the tail coming around outside of the center of gravity.
I have appreciated Ed's discussion of cognitive availability, but I titled this cognitive awareness which has to come before availability. The stuff we haven't seen, much less brought into muscle memory by iterations, are less likely to trigger availability in both the lateral and vertical aspects. Thus Ed's expanded envelope exercises and my maneuvering flight techniques.
Dan Gryder was recently looking at a 182rg accident in Louisiana that where the official probable cause was stall spin. I agree with Dan that it was more likely the pilot locked up on the controls so solidly that the instructor was unable to get out of the pilot's induced pitch straight down. That was what a witness saw. No not a pilot witness, but when Dan asked very pointedly, "was there any turning or twisting of the airplane," the witness said no. The airplane was completely buried in mud with no debris field. Cognitive awareness, fear, was present, but not cognitive availability.
Download my free "https://tinyurl.com/Safe-Maneuvering" e-book.