Earlier quoted context omitted.
If you ask humans to explain why we did something, Sperry's split brain experiment gives reason to think you can't trust our accounts of why we did something either (his experiments showed the brain making up justifications for decisions it never made) Bit it can still be useful, as long as you interpret it as "which stimuli most likely triggered the behaviour?" You can't trust it uncritically, but models do sometime…
None of the developers that I’ve worked with have had the hemispheres of their brains severed. I suspect this is pretty rare in the field.
But are their explanations for how they behaved any more compelling than those of people who have? If so, why?