How come both the card network and Stripe get to continue operating by simply firing their bad customer, but Flurly doesn't get that chance? I don't mean "they

How come both the card network and Stripe get to continue operating by simply firing their bad customer, but Flurly doesn't get that chance? I don't mean "they had a chance to avoid the problem by switching everyone to Connect". I mean, how come Stripe and the card network both get to say "I'm good, just one of my customers is bad, so I'll just get rid of them now that you have told me you don't like them." But Flurly doesn't get to say that? The card network gets to keep running as long as they do something about their bad customer Stripe. Stripe gets to keep running as long as they do something about their bad customer Flurly. They recieve a consideration that they don't grant in turn. Don't base the answer on how obviously dodgy Flurly seemed to be "asking for it", without being able to show that Visa is never used for any illegal activity.