Them: It’s just a tool. Like a calculator.

Me: So calculators often give incorrect results?

Them: You can get a second opinion.

Me: From another unreliable calculator?

Them: Of course the developer still needs to do code review.

Me: So this is a calculator that ALSO requires doing the math by hand?

@lapcatsoftware, reminds me how I used to double check various tax calculations, before I could get myself to trust the accounting software. Though here the problem was that I wasn't sure that I've entered all the data correctly and that it had up-to-date formulas and constants.
@lapcatsoftware that last line gets me everytime this debate comes up