It's the wrong thing in production
Based on what? What makes something wrong or right in production providing the toolkit works and exists to allow it to be widely adopted and mass produced, and the end goal of the device is achieved?
I've seen similar complaints before: "Arduino has no place in production, it's too heavy on flash for microcontrollers, blah blah blah blah". Yet it too does the job, and does in fact get used in some production cases as well.
If you want to gatekeep, fine. Justify your position with points specifically relevant to production. Let's hear it.