Having just watched the repeat, I'm also disappointed in the filming itself. There was precious little detail about the plane, its restoration, about the massive mountain range she had to cross (how high? how cold?), how she navigated, and whole host of other details.
Now I read here that much of that stuff was taken care of for her.
While the in-flight shots were marvellous, there weren't enough of them. Sorry, but it just seemed like a wasted opportunity.