I don't think that really holds up. Ultimately you could say this about any small mismatch between desired skill-sets and those available, but at some point we call it hair-splitting.

If you need someone to build a parser for your IDE, you're presumably better off with an expert in traditional compilers, than with someone who knows nothing at all of language processing. You'd be better off still with someone experienced in language processing within IDEs. Less mismatch is better, even if it's impractical to insist on no mismatch at all.