I had to wait 6 weeks to get the AirPods.
Now THAT was rediculous!
The AirPods were a unique situation. They were supposed to launch in October 2016, then they mysteriously never launched and Apple announced there was a delay. Then they launched around mid December 2016, factor in all the hype And demand created a large frenzy of consumers ordering them. Apple couldn't keep up with all the demands, hence the back orders. This was not a stable launch.
Also, Apple is notorious for predicting a much later arrival date for a product, they usually arrive much earlier than the delivery window Apple predicts. For example, my AirPods were are also slated to arrive within six weeks, but I received them in less than half the time. It all depended how quickly someone order them when they first launched.