The person designated by the federal government to recommend who is exempt from DMCA restrictions recommended this work by name as an example of a work that would be hurt by not having exemptions to Decryption prohibitions. They considered it a valuable documentary.
>“Based on the video evidence presented, the Register is able to conclude that diminished quality likely would impair the criticism and comment contained in noncommercial videos. For example, the Register is able to perceive that Buffy vs Edward and other noncommercial videos would suffer significantly because of blurring and the loss of detail in characters’ expression and sense of depth.”
-Recommendation of the Register of Copyrights, October 2012 (Page 133) Maria Pellante