It's an Atlas Guide written by Joanna Wiebe who is not a Stripe employee.

Even if she was, companies are companies - not individuals.

"Them" in this case isn't the end consumer (you or me) but a business looking for an online payments solution.

Plus, Stripe is big enough that the landing page will focus more on overall company branding than that of a single product.

Because they've moved on to target the mass market, which is made up of people who just want to use the industry standard and don't care about specific features.

Their target customer is seeking the standard.