The entire article is an exercise in "CEO said a thing!" journalism[0], it seems. No technical discussion is had; it jumps straight into relaying people's feelings when simply shown the output of an algorithm.
The most poignant criticism of the use of the algorithm itself happens almost accidentally, at the end of the article, by the tech executive being interviewed.
I asked what Claude would think of the pope’s encyclical. It was, after all, the world’s most significant moral document to date on A.I. Mr. Olah hesitated.
“Things that go on the internet do affect models,” he said, visibly uncomfortable. But Anthropic would not specifically use the document to further train Claude, he said. The strongest influence on Claude would be Anthropic’s own training.
[0]: https://garymarcus.substack.com/p/ceo-said-a-thing