They do see those use cases. It's not surprising that they focus on the enormous number of other, negative use cases. It's misleading to describe the medical use cases as "more important" - yes, they are, in the same way that healing a person is "more important" than ruining their lives. That's not what you're implying by your usage of the term, though.
A person having a negative attitude about AI doesn't mean that they wouldn't keep the parts that are mostly positive if they could.