I will take the OP's story at face value, but I think a common theme in these sort of posts is the "Stripe not happy with my business model" angle which typically does not actually include any details about the business model. For example, a few weeks ago the founder of Tailwind tweeted [0] about how Stripe had shut down their account when they were set to launch the Tailwind Job Board, despite many other job boards…
What is wrong with a job board or a coaching business?
The risk profiles are different. That is only thing the payment processor cares about, same reason why adult services get shunned. Not because they are puritans, it is because of risk of frauds and chargebacks etc are much higher .
Coaching is a service unlike Tailwind the software that can varying success and satisfaction levels customers probably do higher chargebacks and stripe's automated systems or low level staff with a playbook likely rejected it until someone senior got to see the bad press and got it fixed.