Yeah. Follow that link and you get an error page. I'm seeing tons of "I think it's a super" but has the super itself been proven? They seem to call it a bubble gum ball. And, from what I read, what they think is a super was an '08 ball. So, unless it was a male bred to a female and produced nothing but calico offspring, I don't see how it's possible to prove it.
Sorry, guys. I'm a hard evidence kind of person. And, I can't find one website saying they are 100% sure it's proven. We can't go by looks, it's genetics. And yes, I have googled. Unfortunately you can't just look at the pics. Most of the links I see either trace back here and are too old to follow, or are of super pastel calico's.