I liked the part where she talks about
Disruptive innovation is a theory about why businesses fail. It's not more than that. It doesn't explain change. It's not a law of nature. It's an artifact of history, an idea, forged in time; it's the manufacture of a moment of upsetting and edgy uncertainty. Transfixed by change, it's blind to continuity. It makes a very poor prophet.
Another part from the book that struck a chord was the point about
"two models for how to make money cannot peacefully coexist within a single organization."
Looks like there is a rebuttal that I havent read yet.