There's exceptions to this. Usuallly founders who've made it past many mergers and kept a central role in the company. Insulting their intelligence will bite you back very quick.

But otherwise I think it's spot on. Especially for Cxx specialized in keeping the ball running, they'll have no interest in understanding most of the business in the first place, they seem themselves as fixers who just need to say yay or nay based on their gut feelings.