Google didn't win by having a better particular feature, it won by being better at the core competency of its competitors: delivering relevant search results with a minimum of spam.
True. Though it seems like there's a fine line between "being better at your competitor's core competency", which is a great business plan, and "being just like X except with an extra Y", which isn't.
I think you can use Google as a counter-example to pretty much any business generalization out there.
Doesn't it prove the generalizations false?
Or Google is a counter-example to the logic as well?
Not really. Generalizations are just... you know... generally true. One counterexample doesn't necessarily disprove them.
I'm sure the writer would be quite satsfied with a 99.9% accuracy.