My copy came a bit early as well, and I read it with a certain amount of glee. Are there holes? Sure. Do they bother me? Nope, not really. I will definitely keep suggesting this series to friends.
Oh and the alternate ending to Feed that she recently released was fun too.

I do also want to mention that it wasn't just Seanan (from your "Seanan/Mira is rather OCD and had a total flipout when her last book 'Discount Armageddon' released early") being majorly unhappy about early shipping about her previous book, she also got some very nasty emails and threats about the fact that the physical book was being shipped early but the ebook not yet being available (like it was her fault, somehow - idiots) and other such stuff, aside from the numbers. She wrote about that on her blog at the time.