My take on it is - "rationality" isn't the point. Don't try to do things "rationally" (as though it's a separate thing), try to do them right.

It's actually something we see with the nuts that occasionally show up here - they're obsessed with the notion of rationality as a concrete process or something, insisting (e.g.) that we don't need to look at the experimental evidence for a theory if it is "obviously false when subjected to rational thought", or that it's bad to be "too rational".