A. The Limits of the Presenting Medium
Perhaps if I saw this on a cinema screen, I might be affected by the illusion. But I saw it on a youtube video in a 10cm frame. There is no sense for me of recession in seeing them this way. The images look like triangles, two of which are bent away at an angle. It just looks like tiny wire frames moving around.
I think this can be expected given the three-dimensional hypothesis. Something seen as that small does not recede like this; it would only recede in my vision if I was just as small. I’m certainly not tempted to see them as roads (which the dotted lines seem to suggest they are supposed to be). So probably the illusion of the year competition was judged using much larger screens than mine.
I could try to claim a more sophisticated explanation.