Had to study the layout of the trolley before I could figure out what the problem is. I'm used to modern ones where there are designated doors rather than being able to enter in any seat row.
IS anyone going to address the weird monster creature sitting behind him? What the fuck is that? That looks like something that would haunt my nightmares.
Maybe you didn't catch it. The issue was that there was plenty of room on the bench but the guy wasn't scooting over, making it difficult for others to get on. In fact, the guys arm is wrapped around the doorframe pretty much signaling that while he knows it's an inconvenience, he's still not moving.
Notice how the squished guy was hogging the boarding side to prevent him from getting in but the rest of his bench was empty. The guy is the only one with the arm around the handle blocking someone with a suitcase. Then Everett is taking exactly one space without putting his luggage in the still empty space the other guy should have shuffled to.