They say later on in that document that you're not paying for tax advice and won't get any: "That said, we’re not providing tax and legal advice. Stripe Atlas users have access to a legal guide prepared by Orrick, a tax guide prepared by PwC, and a free consultation call with an expert from PwC. PwC and Orrick will not provide tailored tax advice unless you engage them to represent you directly as a client.

If you have your own legal counsel or tax advisors, we also recommend speaking to them as you decide whether and how to set up your business with Atlas." https://stripe.com/atlas/faq#taxamplegal