The official statement reads:
In this horrific age of LGBT kids taking their own lives, they need to know that they ARE BEAUTIFUL and their lives are worth living. Aside from those that are committing suicide, the bullies that facilitate these tragedies need to learn that homophobia is NOT okay. They need to know that acceptance of their fellow human beings would indeed plant a seed of peace that will reverberate throughout the world.
Where do you stand on Bert and Ernie's nuptials? Do you think it's time that Sesame Street had a same sex marriage, or are activists going to far in order to teach homosexuality to children at a young age?
UPDATE: Sesame Workshop has released an official statement about the matter on their Facebook page:
Bert and Ernie are best friends. They were created to teach preschoolers that people can be good friends with those who are very different from themselves.
Even though they are identified as male characters and possess many human traits and characteristics (as most Sesame Street Muppets? do), they remain puppets, and do not have a sexual orientation.