I feel like this is a reality when communicating across any two domains. People have their own problems their mind is busy with, you have to optimize for the least attentive person. That said, this sales-pitch style communication is exhausting.
While in principle (as a non-executive who gets endlessly frustrated with these sorts of constraints) I wholeheartedly agree with your point, it's probably more reasonable to expect domain experts to learn one general "communicating with executives" style than to expect executives to learn countless "communicating with domain experts" styles.
In ignoring those people (who may be technically brilliant or huge experts in their domain), the executives miss out more than the domain experts do, since the latter don't necessarily have a stake in the company's success.