Netflix, I agree. But what about Tinder, Reddit, Yelp, and Foursquare makes them unsuited to a PaaS? Is this, "It's not fast enough for my EXTREME METAL CLOSENESS?" arguments? Scaling them isn't inherently made easier by AWS. People said the same shit about AWS as opposed to your own data center.

The nice part about Google's approach, it gives you both worlds in an interoperable package. But I suppose you're more interested in the silverbacking than the specific technical arguments.