I agree but I think there's a caveat. I think it is possible to have situations where it is really hard to corner the offenders and it makes sense to go after the enablers.

One case would be ransomware attacks, another case can be content out of reach from the jurisdiction(for example, at one point Russia might choose to host copyrighted or other no bueno materials).

With the case of PornHub, the victim apparently reached them but it took PH weeks to remove the offending materials. Maybe, if that industry or that company cannot be forced to act appropriately before an irreversible damage is done it can make sense to go after their enablers like Visa.

It could be reasonable to require payment processors to have a fast channel to report abuse. PH would have noticed the problem much quicker, had Visa cut them off from collecting payments.