Da Prophet
Mid-Card Championship Winner
Most people aren't but this is the best they can do with a legitimate injury. They should have set it up on Smackdown but it's fine for a one off.
I think it depends on how long they knew Orton was injured for. If they found out like today or yesterday I'm fine with it being Kane as the replacement. If they have known for a week or more than I feel this is a piss poor replacement.