I watched the video and the first question that came to mind was wondering what she was about to say when cut off.
In agreement with Ann Coulter, the video was not "edited". Nothing in it's content was changed. It was an intact excerpt of the entire speech. All excerpts are taken out of content and it is the responsibility of the viewer to make good judgments about what they see. While publishing misleading excerpts might not be considered ethical, it is not illegal.
BTW, if you listen to the entire video, note that she is receiving applause and approval right up to where she starts to point out that her view was wrong and that blacks need to adjust their view as she did in helping the white farmer. She gets no applause or any comments of support...only silence.
That might be taken to show that those present are racist, cheering about a white farmer not getting the help they need and then falling silent when they find the white farmer did get help.
There is another explanation. When she was telling about how she felt about helping a white farmer when so many black farmers were in need, it was a pep talk. Folks cheer and applaud a pep talk. When she started to point out that their attitudes need to change, it became a lesson. Folks listen and learn when they are being given a lesson.
Is the NAACP a racist organization. Maybe, but they cannot help but be a racial biased organization since they are all black.