@redhotrocket that's the relevant phrase of this article : “Amazon has talked to every major launch provider and they will continue to explore all options for future launch services”. The rest consists of "declined to provide details", "did not disclose" a.s.o.

Whereas in the other one there's cited “Low cost and the ability to scale are at the core. We are a business and so we have to make money" https://www.forbes.com/sites/davidphelan/2023/06/23/project-kuiper-how-amazon-will-drape-the-world-in-satellites. So #LaunchCost should be a factor ? 🤔