The argument only fails if the phenomenon is both motivated to do this, and capable of doing it without fail for decades.

i.e. it not only has to not be natural/dumb, it has to choose this pointless course of action, and execute it without failure.

It's a very extra-ordinary claim that that point. With only perpetually liminal proof. We can't rule it out, but https://news.ycombinator.com/item?id=27354904