answer would be yes? Like, did you think it's general admission seating? Did you think people would be charitable and give up the seat they paid for? Did you think there's just plenty of room and everyone is just a friendly Mormon so they'll want you to be able to sit with your friend? "Sure, we'll make it work, the more the merrier"?
I ask because obviously a lot of BYU fans are this blind to their surroundings that they do think this is OK and it's asinine and they deserve any ridicule that's directed at them.