There's an important difference: consumers choose to fly with UA just like they choose to walk into Chipotle and buy a burrito.

The vast majority of EFX's profits come from services that consumers (effectively) don't choose to participate in.

I get your point but, in this case, the consumers are banks and the likes. You aren't, probably, their customer.

I'm not suggesting that's right, but it is how it is.

What impetus do the banks have to change credit rating providers, especially when it would come at massive cost to themselves and probably take months if not years?

The only one I can think of would be consumers refusing to open bank accounts or credit cards with them because they run Equifax checks, which seems improbable.

Right? I don't think they will change. I am biased and jaded, however.

I did. I made bank on that one (I bought calls, but same difference.)