Well, for what it's worth, I am the creator of the "30 Fraggle Faces" design that won the grand prize, so a Muppet Central member did win the contest!
That said, I was also surprised that they only decided to make three of the designs into shirts, given how many other amazing entries there were in the contest. I'm at least glad that the Boober shirt got made, as that was a favorite of mine all the way through the contest. Maybe it was a cost-saving thing? The Spongebob and Mickey Mouse collections revealed at the same time are also really small, so who knows.