The author is suggesting replacing a bad plan (everyone discuss each intersection) with another bad plan (just drive however you like).

(And as an aside, stopping at each intersection to discuss is not ideal, but at least no one is going to die.)

Anyway, I’m unconvinced. Most of the planning failures I’ve seen came about because people were bad at planning, not because they were talking too much. I’ve seen the opposite (not enough talking, not enough looking ahead) far more often.

I do like the slogan though. Planning is for doing.