My understanding is that Campbell was never well-regarded by the relevant academics and that time hasn't helped his reputation any.

This reminds me, by the by, of my own "conversion" experience: a book by the name of the Lucifer Principle by a one Howard Bloom. I read it at a young age and was dazzled by the basic idea of evolution, which had been taught to me in school and was never disputed by my church, but never with such power: I finally Got It; that from random processes patterns always emerge and are implicit, humans are just a complex pattern operating on the basis of laws mostly beyond our comprehension, &c.

Years later, I re-read it, expecting to re-unite with the wonder of my past and... was struck by how stupid it was. The arguments were moronic, the facts were wrong half the time, and so on. But I owe it a debt for making me a materialist, even if I would have dismissed it after perusing it at the library today.