Yeah, that's moving the goalposts.

The point is that either product should theoretically have the ability to handle Google's load. They were both built for scale. If I have the timeline correct, they existed at that point. I would expect those organizations to have positively salivated at the possibility of having Google as a customer; they would have bent over backwards to make it support Google's workflows.

The ROI of such a choice vs going custom is the interesting question.

Of course, if I have the timeline wrong, then the discussion is moot.