These arguments always strike me as coming from people who don't actually understand what design is. The folks who think that design is the font face, the weight of lines, the colors used. Those are all facets of design, but they are essentially just tools to accomplish the goal: experience and engagement. What you are noticing are just trends, and this is nothing new. Look back over the history of even just twentiet…
No, this isn't true this time. I have been using iOS 7 on iPhone 5 for a day now, and I have mixed feelings. I have always trusted Apple to 'get it right' and be delighted with thought-out details and just no-frills great UX. I know it's Beta, but it honestly looks and feels like Android with a bit of lag here and there, some stuttering animations, confusing unlock and answer call screens, too thin fonts for my taste…
I am, however, not a fan of some of the graphical choices they made. A few subtleties like a thin 1px inset color on the NavBar text would do wonders for UI and contrast - but I'm not hired by them to make those decisions.