>>112008596The lesbian kiss at the end was put in to distract from the actual issues that the finale and show in general faced, and to appeal to the tumblr shipping audience so that they'd accuse anyone that didn't like AT of just not liking the lesbians, effectively deflecting all criticism the show had received in the 5 or so years prior to this.
And it worked, all anybody talks about now is how good the lesbians were, how bad the lesbians were, or AT threads get derailed into those topics.