>> This is a hypothesis
... stated as though it were a fact.
>> Does tis sort of thing make you nervous?
Not per se. Science and the Creator are compatible (because the stuff of science — physics, chemistry — are His creation too).
What makes me nervous is when hypotheses like these, especially flimsy ones, are passed off as Facts Chiseled In Stone and carried forward into “policies” and “mandates” that destroy our economy and our way of life, in the name of earth or universe worship. That’s idolatry, by the way — worshipping the creaTURE rather than the Creator.
OK, but there is NOTHING in this article to indicate that anything is chiseled “in stone”. In fact, the article mentions that there are two (at least two) ideas that might explain the heavy/light water ratio of terrestrial water. This is really only of academic interest.
On the other hand, I am with you 100% when hypotheses (especially weak ones like man-made climate change/disruption/warming/cooling/ etc.) do become chiseled “in stone” and become the basis for misguided even disastrous public policy.