Ahem, on triumphalism, I would recommend re-reading the very start of the thread.
> Today we’re a successful company with 600 employees, billions in GMV, and growing rapidly
> Today we’re a successful company with 600 employees, billions in GMV, and growing rapidly
Even so, I still think the closing could have been better. His last words are an accusation, and he portrays a landscape where it's hard for Stripe competitors to win. There actually was an opportunity to say something like: "And yet, if there's anything I've learned, it's that in the end a great product can overcome all adversity. That's what enabled us to become the first unicorn startup in the world to have introduced a 4-day work week for all of our 600 employees."