I also think falling for this is implicit in the notion of the MBA. Previously, management was mainly company founders, founder families, and people who had come up through the ranks. That is, all people who spent years learning the specifics of the business. But the theory of the MBA is there's some universal set of "business skills" that makes actually understanding the business domain irrelevant.

In practice, I think this means falling back on a limited sort of finance understanding and some generic notions of top-down business process. There's not much there, so they make up for it by leaning hard into their human instincts and skills.

Unfortunately, that leads to many problems, including over-trusting people who present well and seem confident.