To those who feel shafted, I’m sorry!
Warning: I’m going to play “devil’s advocate” for a moment, so go easy when you flame me!
Is it possible that the folks at Disney didn’t
intentionally set out with only one “look” that they absolutely
knew they were destined to pick: “Gee, folks! We’re going to have a contest, and we’re only going to consider the apps that roll in from clean-cut, white, thirty-something men…”
I’m guessing that they cast the net wide, so to speak, because they didn’t want to limit themselves. They wanted to see what was out there and to allow their large Disney fan-base (which sounds like it’s dwindling by the minute

) to have some fun in the process.
That said, only Disney knows the specifics of the job that the company has in mind for its CMO winner. And, as Justin M said, “I'm sure they have a 'look' in mind based on the specific responsibilities that they know they want this person to fulfill.”
One thing I am sure of: You can bet the judges are looking closely for specific qualities that are necessary for performing those responsibilities. Those are the “non-negotiables” on the judges’ checklist.
In the process, I’m sure that certain biases may have entered into the picture. (For example, I’m not sure if I’m the only one, but I always envisioned any female candidate as sort of an older, pleasantly plump matronly type. ‘Kind of an extension of Cinderella’s Fairy Godmother, I guess. It’s a good thing that I wasn’t on that panel, huh? I might have ruled out disneydaisy. ...Very cute video, btw! You have a lot of charisma!

)
Regarding any abundance of on-air personalities, I’m thinking that it’s definitely an advantage for an applicant to do radio/voice-over work. That job title says it all: In just a few words, it’s understood that the person has made a career out of public speaking.
Okay. I’ve probably said too much…

I realize you probably already know all of this anyway …

As several people have admitted, you're simply working through the disappointment.
Now back to your regularly scheduled program: "Rabbit stew anyone?"

(Funny post, HauntedMansionFan! Twisted... But funny!

)