The fact of the matter is that banks are not like any other business. They run the payments system. That is one of the main reasons that governments protect them from failure with explicit and implicit guarantees. This makes them look not too unlike other public utilities. A telecommunications company, for example, may not refuse phone or broadband service to an organization it dislikes, arguing that it amounts to risky business.
I agree with the editorial. But, alas, the telecom companies would love the discretion to do just that. That’s part of the net neutrality debate.