I commented elsewhere that I think that arguing over the definition of "wealth creation" is pointless - obviously there are a million different subjective interpretations of that, and I at least give credit to the author to fully specifying his (admittedly very narrow) methodology.

That said, I think your point about "And what about if your company causes another company's stock to decrease in value" is an interesting and valid one even under the author's very narrow definition. Just take the current (at least very recent) phenomenon where tons of SaaS companies completely tanked due to AI fears. How does Jensen Huang get allocated some of that "wealth destruction"?