There's a cottage industry of pundits who proclaim how a biopic of X isn't faithful to the "life" of X.

What nonsense. ALL biographies and documentaries are fictionalizations in one way or another.

In one of my favorite films, Luis Bunuel's "Land without Bread" ("Las hurdes"): Bunuel points out how harsh the conditions are in the region by showing a mountain goat falling from a steep precipice. From what I've read, Bunuel actually had someone shoot the goat in order to film the "accident."

No matter how "faithful" a story is to the life of a "real" person, it will fictionalize something. According to quantum theory, observing the course of a subatomic particle means that you in effect change the path of that particle.

A zillion years ago, Sir Philip Sidney pointed out how the truth of fiction is truer than the truth of reality. The internal (what you would characterize as the truth of the internal life of the protagonist) is what we should strive for. If the result works for a real audience, then screw the pundits.