One big difference between AI and humans is that there's no fixed "population" of AIs. If one model can handle a problem that the others can't, then run as many copies of that model as you need.
It doesn't matter how many models can't accomplish this. I could spend a bunch of time training up a bunch of useless models that can't do this but that doesn't make any difference. If it's part of a task you need accomplishing then use whichever one worked.
Alright, so swap in some different words if you don't like those. The basic point is the same - there's a bunch of models from different sources that can solve this, it's not just some weird one-off fluke.
Your own argument is a bit all over the place too, by the way. You said this puzzle "wasn't tricky in the slightest" and yet that "it requires understanding what is being asked." So only 71.5% of humans can accomplish this "not tricky in the slightest" problem, but there are some AI models that are able to "understand what is being asked"? Is "understanding" things not "tricky"?