I wouldn't call it disturbing - only, if I want to create clickbait. "Expected" would be more like it. There you go:

“When people rely on large language models to summarize information on a topic for them, they tend to develop shallower knowledge about it compared to learning through a standard Google search,” study co-lead author Shiri Melumad, a professor at the Wharton School of the University of Pennsylvania, wrote in an essay for The Conversation about her work.

It's hardly shocking that only reading the Cliff Notes gives you a less extensive knowledge of subject matter.

Only thing that's disturbing is journalists thinking this type of headline is OK.

You can't trust it?