Excuse me?! Different methods, different places. Not once in my life have I had an bandage injury on my horses, not once has my coach has a bandage injury to her horses. Every. Single. International dressage clinician I have been to has used wraps under bandages and recommended to use wraps under bandages. Another rider got absolutely DRILLED in one clinic for bandaging straight onto the legs. She was pulled out, lectured by the clinician and sent out of the arena unless she could supply wraps under her bandages or take the bandages off completely.
Maybe we have different pillow wraps - I'm talking thin, padding to place under the bandage. You're probably thinking enormous fluffy wraps to put under bandages for an injury.
And I really don't appreciate being spoken to like that, when you have just stated yourself that you are uneducated - your whole 'riding career', give me a length of time and experience and I might consider you.