Contrary to the mainstream opinion here, I would argue that this might not be true. The 12-inch MacBook, being supposedly the entry-level Mac, was not in a clear space in the lineup in 2016. On the one hand, there was the MacBook Pro, starting at the same price, while being much more powerful. Apple wanted the MacBook to be a ultra thin and light parallel to the Pro, but it did not go so well. This is caused, on the one hand, by the thermal constrains of the chassis, and one the other hand, the high manufacturing cost of the ultra dense motherboard and the terrace battery. Apple quickly reverted that with the reintroduction on the MacBook Air. I doubt whether Apple will make the same mistake again.