The question is not about the general utility of business plans. It's about whether they're good for early stage startups. These kind of organisations need to

The question is not about the general utility of business plans. It's about whether they're good for early stage startups. These kind of organisations need to move fast and try a lot of stuff in a short amount of time to see what works. A business plan then seems expedient because the future direction is not set in stone anyway. That's the logic behind the argument.