I wouldn't be even suprised if Russia was behind this. Putin's government is very anti minority and anti women's rights, and TLoU 2 is apparently really pro minority and pro women. Their propaganda has targeted for example the latest Star Wars movies for the same reason, and I just checked their main propaganda site RT (Russia Today) and it had TWO articles about "how SJWs are ruining games/movies" and one of them was about this TLoU 2 leak. I just find it really odd if any country would focus its propaganda towards some game leak, whereof most likely only hardcore gamers are aware of, unless the particular country was itself behind the leak. But it could just as well be some angry gamers.