[notahacker]

You can still de-risk the proposition by offering a money back guarantee. Or indeed a free trial where the user gets prompted to confirm they want to subscribe when they try to login in after the free period is up - not a massive issue when the service is actually worth paying for to them. Or indeed a free trial where there's no automation at all and company negotiates a contract with the salesperson after the free period is up.

The only people affected by losing no-confirmation autobilling are those who make non-trivial portions of their revenue on people forgetting to cancel. And the industries and businesses that HAVE to rely on that deserve to fail, frankly.