I agree that if you look at the force couple, tight hams should help with anterior tilt.
Stretching my hams has helped with lower back pain which has also helped me correct postural deficiencies (like tilt). So for me the point is mute as to whether it should or will help with tilt, it only matters that it does. That's all I was saying.
You also have to ask yourself, what are tight hamstrings doing for me? And how does stretching them play a part in the bigger picture, rather than what do they do for anterior tilt alone. But now I'm just playing Devil's advocate
