I think it's an excellent article. That's what I've been working really hard on with my horse this year is being quicker to stop pushing when he responds and the idea that you tell him to do something and he's supposed to do it until further notice whether that be going forward, sideways or standing still. That way you don't have to work so hard when you're riding too. The horse has to carry you (a novel idea). Anyhow, great article and really, the very few pictures that capture a brief moment in time and are at odd angles and don't even show the full horse are nothing to get your knickers in a knot about. I think that if all you worried about was keeping your horse's poll up then you would have a very stiff horse. The ideal competition frame is poll up and nose in front of the verticle but sometime you have to briefly demand submission and I don't think any of the pictures come anywhere near rolkur-type flexion.