this is either the smartest thing Google has ever done, or the dumbest.
I've said that to myself many times. I've never had it (whatever "it" is) be the smartest thing I've ever done. To be fair, it is rarely the dumbest, either, though it tends to favor that.
If you find yourself thinking a choice will be this polar in outcome, you are probably making the wrong decision.
For the record, I don't think MG is right about this being the (binary) smartest or dumbest decision for Google.