Additionally, the explanation might work for the exec asking the question, but not for others.

I don't like that executives don't have to put in the effort to communicate their concerns and put pressure on the people who already have the pressure of researching, validating, and presenting the solution.

I'm probably going deeper than I should. Still, if the executive asking the question isn't technical, he could direct the question to the executive who's supposed to have a technical background that earned their position in the company. You know, people making decisions should have an understanding of what they are building/selling.