The reason why L8’s structure works better than Hal’s is mostly because of flow. Hal’s structure is formless. I like what he was trying to do with downplaying Padme, but that element is the one thing that drives Anakin throughout the story and progresses the story logically from scene to scene. I too wish his fall had more to do with disagreeing with the Jedi order, but there’s just not enough to work with to make that happen believably. With L8’s there’s actually a building tension that makes Anakin’s eventual turn more natural.