Exactly, we need a much more granular approach to evaluating intelligence and generality. Our current conception of intelligence largely works because humans share evolutionary history and partake in the same 10+ years of standardized training. As such, many dimensions of our intelligence correlate quite a bit, and you can likely infer a person's "general" proficiency or education by checking only a subset of those dimensions. If someone can't do arithmetic then it's very unlikely that they'll be able to compute integrals.

LLMs don't share that property, though. Their distribution of proficiency over various dimensions and subfields is highly variable and only slightly correlated. Therefore, it makes no sense to infer the ability or inability to perform some magically global type of reasoning or generalization from just a subset of tasks, the way we do for humans.