I've never bought that argument. Apple wanted to sell high margin accessories that get broken, lost and replaced often because people hold on to their devices about 4 years now instead of the 1-2 from 10 years ago.
I use a panasonic wired headphone with a mic, $10. Airpods are $200. They wanted to increase their costs and frequency of purchase by hiding it behind accessories with higher profits and shorter longevity than the primary device.