Teaching in the UK, my "local" examiner has said he would fail people, if during their approach into, and recovery from a clean stall, they use any aileron without first reducing AoA
Many Examiners only regurgitate their own theories presenting them as facts. Have witnessed that hundreds of times in my career. I ran a straw poll many years ago, asking students and flying instructors in various Australian States on what they had been taught re the subject of "picking up the wing with rudder" at the point of stall. What had me dismayed was that upwards of 90 percent of replies indicated that is what they had been taught. And still are at many Australian flying schools. It seems unstoppable despite the correct method being published in the CASA Flight Instructor Training Manual.