Point is the flattening itself is irrelevant. You can flatten a spin without power, and flattening the spin should NEVER be the goal. It's purely the application of power which can possibly be a beneficial last ditch effort whether you're spinning in the direction that gets flatter with power or the direction that gets more nose down with power. I don't want people reading this thinking spin recovery characteristics improve as a spin flattens.Did you read the whole article? It mentions power steepening as well as flattening. And the Mason referenced advice is specific to too late to recover and too late or unable to get out. Context matters.