The Phantom Menace doc is a great piece of storytelling, far better than the movie it is hightlighting.
It also in a microcosm shows how Lucas was out of touch for the project, as there was seemingly a great actor that read for Anakin that was passed over for Jake Lloyd, for the sole reason that occasionally, he can do something good. This is probably the approach he took as a whole for a project, thinking he could fix mistakes or get lucky and make magic happen as it did with the OT. But the biggest thing Lucas never truly realized is that the OT was probably far more successful due to people such as Lawrence Kasdan, Gary Kurtz, John Williams, and even his wife Marcia than it ever was due to him. Yes, he adapted the classic hero concepts and created a new IP but it was the others that he surrounded himself with that truly gave them life and made them special. Lucas was simply the facilitator, but when it came time to be the man with the plan and spread his creative wings, he showed that all he was truly good at was repurposing old concepts and giving them a coat of paint.