...Did this documentary bring to light the fact that former Confederates were denied the right to vote, that confiscatory taxes enacted by the Radical Republican officeholders forced many to sell their farms or that organizations were formed to provide for former Confederates who became poverty-stricken...
Not a big enough factor to feature in a TV series on Reconstruction.
If anything a sidebar: one of those PBS "see pbs.org for more information on former Confederates during Reconstruction" things. Why? because that story is nothing more that the to-be-expected consequences of white Southerners that chose to secede and become Confederate, so basically their own self-made problem. Even then the unfairness of it was not especially grievous by comparison to how other nations had treated their defeated traitors. In a few hours a TV series can only cover the primary drama of Reconstruction, the story of those who never had a choice.