Japanese Atma theory is real, proof in link.

[StouterTaru]

But you are only arguing against a point that noone is arguing. I havent seen anyone supporting the "clock theory" say that atma will only drop during these times, or even that you are guaranteed a drop at these times. The only arguments I've seen are that drop rates seemed to be increased during these specific times. Just because a drop rate is increased does not mean it's no longer RNG.

That is exactly what the theory is, take a look at the link in the OP. They only drop in xx zone at xx time clearly is not true.