I was going over the Rider Safety Guide last night and it seems that they've made some changes this year. Excalibur is also a '4', which I believe, along with Renegade, should be a '5'. Mad Mouse used to be a '5', but is now a '4' and I can agree with that. I guess my concern lies in the fact that with both Ex. and Renegade you can't see a bulk of the track from the walkways in the park. People who are "on the fence" about riding might see that it is a '4', on par with MM, and think that it is as tame as MM (which I think we'll all agree, isn't the case). If a person in that situation were to ride based on their ratings and have medical issues or get injured in some way, it could generate some negative press for the park.
Maybe I'm just looking into this too deeply.