I'm sorry but this is bullshit.. the obvious interpretation is that Google wanted the patents and ended up with a business line they weren't interested in. Leveraging it for PR the way they did was insincere at best, especially on such a short timeframe.
Also it's entirely unclear to me what the outcome might have been for Motorola as a whole, had Google not been having wet dreams about its patent portfolio. Perhaps you have some insight here that you're not sharing?