The ultimate anime recommendation flowchart calls it a Gender-bending Feminist Classic; the Evangelion of Shoujo.
And that's probably true, but I think there's a case of the _Citizen Kane_ effect here: many of the ways it was groundbreaking have been adopted into the standards.
Oh, and the YouTube upload is legitimate and from the real licensor.
https://www.youtube.com/playlist?list=PLrrh84y760v-hDEulas0Tp_wiQy0FcjLl
In other words, Juri Arisugawa had to be in the closet then so Kanbaru Suruga could be out now.
No doubt people will duel forever over if Utena and Anthy are actually lesbian sheep or if it was all manipulation.
(Duel to be resolved via fanfic. Meet at AO3 after school.)