I think they're saying Stripe thinks those businesses are scams, illegal, or otherwise in gray areas that Stripe would rather not support. There's probably some automated decision-making happening on the backend so there are edge cases where good business are getting shut down on accident.
Implying that you are happy to take on responsibility for infrastructure of someone's business, then unilaterally and without notice or opportunity to cure any issue, is pretty much tantamount to theft. Stripe in this case appears to be accepting money, then failing to provide service, and in this case is even holding onto money paid to their customers. This causes a lot more damage to others than it does to Stripe.
I don't like externalizing problems to other parties as a business model.
YES! I have no idea why you are being downvoted on that - while it wasn't in mind while I wrote it, it does indeed apply! All the problems are at placed on the gig worker and the Ubers/AirBnBs/Instacarts of the world provide the software and work to shed as much responsibility as possible onto the drivers/hosts/workers. Apparently, there's a fair number of ppl on here who either do not see that or whose salary depends on them not seeing it.