I do. It's not so benign as to be out of boredom, but out of the perverse English character. I'm sure Heathrow is some Enochian pun related to jumping between hell, purgatory, and limbo.
(Yeah, yeah, don't put on your clever pants, I know where limbo is!)
I am curious about your choice of the word "intentionally".
Do you think that some person or persons decided to make travelers miserable on purpose e.g. because they are stuck at work and are bored?