This is a big win for the plan-as-you-go business plan over the standard traditional business plan. It helps preserve the idea of planning for the people who know what they’re doing in the market, who already know their industry and their customers and their strategy and how and why it works, but don’t plan because they think, wrongly, that doing a plan means proving something to somebody else. If you already know and you’re satisfied with it, then skip the proof.