It seems like these "discoveries" are mostly "We provided a dataset and Kosmos found the same conclusion as the scientist." This is an advancement but those datasets are not random in any sense. They were created to support a specific hypothesis which lead to the shared conclusion of the scientists and Kosmos. Discovery 7 seems to be of a different flavor in that a novel conclusion was arrived at from existing data.

I really think this is not "Autonomous Discovery". There is so much thought and science behind deriving the hypothesis and determining what experiments to do that is not captured in what Kosmos demonstrated here. It is exciting to see the reasoning capabilities and look forward to next steps but at this point a bit oversold in my opinion.