Speaking from my experience doing a fair bit of interviewing and hiring at Twilio, I think #1 becomes less important as a company grows. He is absolutely right

Speaking from my experience doing a fair bit of interviewing and hiring at Twilio, I think #1 becomes less important as a company grows. He is absolutely right that for a team the size of Stripe's, enjoying working with every other team member is critical. But I'm interested in his thoughts on that requirement after they have 100 engineers, which they surely will. Perhaps at that scale, the Sunday test only applies to the smaller team or project group the candidate will be joining.