Sounds like Miller believes Spielberg didn't even come close to going over the top on Linclon as a person. Sounds like the movie is more about the 13th Amendment than it is about Lincoln himself:
4 Lessons From Lincoln – What We Can Learn From America’s Greatest President
There was no renewed interest in Abraham Lincoln at the release of Steven Speilberg’s
new film because an interest in Abraham Lincoln has never waned. Lincoln is considered by many to be America’s greatest leader. Daniel Day Lewis plays the President so wonderfully in the new film that he certainly deserves an Oscar, as does the movie itself.
Missing from the film, however, is Lincoln’s darker side, the sad Lincoln, the tortured Lincoln his own letters reveal. But this wasn’t so much the focus of Spielberg’s film.
The director wanted to tell the story of the passing of the thirteenth amendment, and he does so quite well. In fact, I would argue this is less a film about Lincoln and more a film about the passing of that specific document and idea. While Lincoln hardly leaves the screen, he’s painted thinly in contrast to the debate surrounding slavery.
http://storylineblog.com/2012/11/20/4-lessons-from-lincoln/
