Considering how Stripe caused an abrupt vendor disappearance when buying Index, resulting in a tidalwave of broken integrations (as Stripe closed Index with no notice, and stopped responding to clients), I wouldn't trust them to support a platform for any period of time to ensure a smooth transition.

Stripe might leave the servers online in a half broken state for a few weeks, but they will not answer tickets or phone calls about critical issues if they've decided to can a product.

https://www.pymnts.com/news/partnerships-acquisitions/2018/s...