It is not different. For a product like mongodb, both the durability guarantees and the documentation explaining them are an integral part of the user experience. If I'm starting a project, I'm making decisions for a junior developer whom I'll hire in 2 years. I care what code that junior developer will be most nudged to write.

If the Stripe API had documentation was needlessly unclear in a way which led people to lose a significant amount of money, that would be a bug.