That's because the story is bogus. Weighing products for QA (to make sure there wasn't underfilling) is extremely common. It's called "checkweighing" and you can buy COTS scales to do exactly that.
Yeah, a lot of the lesson seems to (unintentionally) be "don't outsource small things". Even completely ignoring the fan solution, the CEO could have assigned one existing engineering employee to work on it and gotten an $8k system with a non-precision scale.
https://doranscales.com/checkweighers/in-motion-checkweigher