Yeah, it has MSE v1.0 UI. I'm kind of glad MS have done this with Windows Defender as it was pretty useless in W7/Vista, but as you say it's just MSE renamed but I'm guessing it integrates better into Windows now (hopefully) and will come as standard unlike MSE on W7/Vista where you have to download it.
Yeah I was all aboard the metro train but now that I've gotten a chance to see it personally...it's very meh and convoluted. I doubt their direction is going to change much from now to release but I can hope.