Thanks for that. It's still a little odd to me, I would have expected a gate or something akin to the rest of the surrounding fence knowing full well how often they'll need to open/close that area.
I'm loving that view of inside Kings Cross, If I was looking at the image out of context I'd say it was certainly a real London station. It looks like there's some ticket barriers in the distance as well, presumably a way of dealing with the park-to-park ticket requirement.