While in general that is true, this is one person and so we can assume a lot of the variables that make it a poor metric are constant in this case and so we can draw a few conclusions.

From my own experience, LLM generated code having more test cases is neither surprising nor an indication of improved quality. I've found LLMs are quite good at making lots of test but the tests are often not that useful. I would argue that total count remains a poor metric for quality.

We can conclude that there are more tests per code perhaps. We can't conclude they're adding value.