I don't think the op's point was "how easy it would be to hire developers", or even "taking all the considerations a business is under, I feel Prolog makes sense". He was just touting how easy Prolog's built in pattern matching and declarative style makes implementing and using selectors at a language level.

Honestly, if we didn't talk about the benefits of a language irrespective of how easy it is to hire for it, we'd never have introduced anything beyond FORTRAN, if we even made it that far. Bringing "X is easier to hire for" into a conversation about the language is, at best, a non-sequitur.