I don't recall making the claim of having a superior mental model. I make the claim that STEM workers cannot rely solely on mystical thinking, we have to apply the scientific method to perform our jobs. This gives us a tool at our disposal to pull back the mysteries in other areas of our lives. Flaky toasters, keyboard keys that stop working, the way light effects our bedtime routines. We don't need to rely on confirmation bias, we can apply the scientific method. Of course anyone can, but we're often forced to do it for hours a day, so we get a lot of practice disregarding our natural instincts in favor of observation and record keeping.