I think what you're touching on is complexity and how many people tend to trust complexity because it's too difficult to validate and you must know what you're doing if you built something so complex.
Even in a corporate environment, I use spreadsheets to support big decisions every day, the format is as you say universal and easily interpretable, but many people never go that far. They trust that I did it correctly and take the "output" as truth. If I screw up big ($), it might cost me my job, but is it really my fault if nobody else even bothered to check my work?
It's not our fault, our brains are wired to find quick & dirty; simple not small is beautiful. But people also contemptuous of what they understand, and accept at face value what they don't. Michael Crichton, much disparaged in his later years for contentious political stances, had much of value to say in his Gell-Mann Amnesia Effects' "wet sidewalks cause rain" critique of how we parse information.
Still, I'm glad it's transparent in this case and thus exposable. How much more is hidden, guarded jealously even, as though methodology was trade secret instead of, you know, the underpinnings of proposed outcome?
Even in a corporate environment, I use spreadsheets to support big decisions every day, the format is as you say universal and easily interpretable, but many people never go that far. They trust that I did it correctly and take the "output" as truth. If I screw up big ($), it might cost me my job, but is it really my fault if nobody else even bothered to check my work?