it is not google who doesnt want microSD on their devices be it phones or tablets, it is manufacturor, and the companies selling them who doesnt want them !
tablets are being sold with little profit margin, theres only a few places where this margin can be increased, microsd is one of them
a 32 gb micro sd can be found for about 20 bucks right sometimes cheaper....by not having an external microsd slot, the makers can force you to pay 50$ more to go from 16-32gb, thats 50$ for 16 gb more memory...easy money, they also save a bit of money by not having to cut an extra hole, and mounting hardware for the microsd...maybe 1-2$ saved....they sell millions so its easy to see how why they do it
we got two of the old nexus 7...and i will be getting this one, passing my old one down to one of my kids, its great to see they finally added hdmi functionality, which is a big deal to me