Headlines aside the story itself raises perfectly valid points imo:
Newshub: I sent him a selfie of me and a bunch of my girlfriends at 15, drinking Vodka Cruisers. A selfie with us all holding them, saying 'oh - come to my party - come to my party'. This was his response."
It was a selfie of Seymour, with the message "Can't I'm afraid but you guys have a great night and be safe".
Seymour replied to one invitation from her: "Hope you are not in trouble! Awww, thanks for the invite!"
Many parents would be uncomfortable about this tacit approval of 15y/o drinking from an authority figure. I know I am. Hypothetically all the parents may well have approved and be supervising in the background there. All the same it looks like tacit approval and a proportion of parents are guaranteed to have feelings about that.