Instant response != Instant resolution. Getting support at Stripe is easy for easy things, but hard when it actually counts. Based on what we've seen here (and what I've personally experienced) getting your payouts paused while not being a fraudulent actor is not that uncommon. Any other provider would not be like "Your case will be reviewed by our specialized team at some point this week, or maybe the next, nobody knowns. In the mean time, please tell all those employees you need to pay next week to take a chill pill." Can you see how this can be frustrating? We process >$10M/YR with other providers and ~$2.5M/YR with Stripe. Our other providers show a lot more urgency when something serious goes wrong, while Stripe feels like they're too big to care if we leave.
We also offer premium support if you need a dedicated support team for your business (https://stripe.com/support-plans).
When you introduce elements of risk (where fraudulent actors try to game our processes) it can affect how we speak about things.
I ran a business on Stripe before I joined Stripe and feel much more comfortable trying to get support here than at other larger orgs.