I'm indifferent with the media coverage, but I'm happy for the couple to have a healthy baby. And Kate did well for a big bruiser of a boy on her first pregnancy. At that size, the baby has an excellent chance of thriving. One could not reasonably call that little one a "preemie."
Sadly, one of the friends of the family had a preemie and now that child has both Asperger's and other variants of disorders. Since I have no reason to want to see Kate or William have anything go wrong - much less little George - I can simply say, "I wish them well."
As to the rest of it, the USA general public is as mindless as any other nation's general public when it comes to media hype. I, at least, can usually remember how to turn off the TV -if I can just remember where I put the remote.