Correlation does not prevent causation either. It's not enough to prove causation, but it's a hint that there could be something linking the two factors in some way. I find the article provides a convincing story of how one factor causes the other.
If that reasoning is unproven, it's just as fallacious to assume that one thing is the result of the other. There are so many arguments that this doesn't work for that it's ridiculous. You can't just make something up and say it's the truth because it isn't illogical and you believe there's an inferred relationship between the two events.
It's interesting, though, that you have nothing specific to say about how one should go about determining causality.
But if you see correlation, it is logical to investigate for a possible causation.