It's more than just money: A payment processor is not all that different from a crypto exchange in their relationship with the bank: It's a very special company that can bring real risk to the banks underneath, so they have to do a lot of regulatory work internally to keep working together. The Stripes and Adyens of the world spend efforts in regulatory because they have to keep the bank happy, but they find those efforts just cost money, not harm the actual goals of the business.

Many of the crypto services believe that no, there's no way they'll do what the bank tells them and still remain useful to their clients. They'd have to compete with the truly off-the-regulatory-world competitors, and probably lose a lot of business there. So they get unbanked, in the same way that I'd get un-bared if I decided to keep showing up at said bar with the same clothes as Donald Duck.