Thank you.
Lindberg, despite his political leanings, had a better grasp on the technical limitations of aviation in his time frame than Earhart did. In 1937, long-range overwater navigation had not progressed greatly since the days of sail, the successful crossing of the China Clipper two years earlier with the aid of US Navy radio beacons not withstanding.
Earhart seemed to have, at best, a sketchy understanding of the technology available to her and, when that got away from her through carelessness, they were doomed.