Scientists have studied the moon's surface for decades to help piece together its complex geological and evolutionary history. Evidence from the lunar maria (dark, flat areas on the moon filled with solidified lava) suggested that the moon experienced significant compression in its distant past. Researchers suspected that large, arching ridges on the moon's near side were formed by contractions that occurred billions of years ago—concluding that the moon's maria has remained dormant ever since.
Not OP, so can’t be certain, but I think what they were saying was a lot simpler. I don’t think their mother would even attempt to understand stellar geology or pharmaceuticals, and instead has a blanket distrust of science except when it suits herself.
Geologic activity on the moon doesn’t seem like a particularly objectionable issue (most people would probably regard it with apathy), but then again there are people who think the Earth is flat and vehemently oppose the science which very clearly shows the opposite. I do understand your confusion as the comment likely isn’t relevant to this paper. OP would probably have made this comment or similar on any number of posts about science news and their comment is probably not influenced by the details of the discovery, simply that a discovery was made.