They aren't. Not really. They are masters of misdirection and that's just what they accomplished with the 2-3 statements they have made. Feed the animals some obscure comments that they can chew on and argue about until you announce the release date.
Keep in mind that NONE of the positions posted by Blizz for Classic were graphic or programming related... only a VERY small number of server/infrastructure guys. That alone tells me all I need to know.