Well we're gonna have to agree to disagree on that one. Ribeye is, to me, the best steak cut.
But even beyond that, ribeye is expensive as hell. It's expensive as hell because it's flavorful but it's already tender enough to cook med-rare. I find things like short rib and chuck are MORE flavorful than ribeye but they're not tender unless they're slow-cooked--or if you grind them.
I feel like throwing ribeye into a burger blend is just trying to make it unnecessarily fancy. And I'm a fancy fella in the kitchen, but it just doesn't make sense to me.