> The Gladwellian direct/indirect dichotomy (or continuum) is a misapprehension of how language works. All communication is indirect in some sense because we don't have mind control powers over our fellow humans. Even saying ‘I want to buy this bread’ is indirect in a sense

If you take 'direct' vs. 'indirect' literally, you are right. Everything is somehow indirect, because language tries to represent reality, but isn't identical to reality.

But you are missing the point. The real issue is information density. Indirect communication generally has lower information density: You give examples of various possible interpretations of one phrase, and the more possible interpretations there are, the lower the information density is. The longer the phrase is, the lower the information density. One can come up with a few counter-examples, where for example a very long and very indirect phrase might just have one very unique and direct interpretation, but those are rare. In general, direct communication conveys more information with less words.