"If Nokia had gone with Android, the best that it might have achieved was to become an also-ran—another in an endless stream of me-too commodity smartphone makers." No. Nokia could've been Samsung, which has the lion's share of the Android market. And Android Lumia would be the prettiest Android handset on the market.
So instead of being a possible also-ran me-too in a large, successful market, they're an also-ran me-too in a small, uncertain market. I'm not buying the logic.
If they used the Android bit to explain a wholesale adoption of Meego or Tizen or something then sure. But going to WP...that just doesn't make sense.