This is my belief, which could be completely wrong and most likely is, but figured I'd tell it to see what others believe:
Tesla has had their system 'predict' when you'd get your new vehicle by giving you a range. A lot of you are seeing it now. they've been doing this for a long time. As a matter of fact, they still do for all models except the X, until yesterday that is. My company works with manufacturers doing data science such as Scheduling AI, Robotics, Forecasting, etc. If you try to do ANY kind of forecasting during this pandemic, it's super hard. Most of the time, you'll be lucky to be even remotely close as the data is trash due to supply chain issues. So my guess is that due to the supply chain issues hitting the X immensely plus QA issues, they turned off the predictive EDD by overriding it in the code. You can clearly see this if you look at the source code if you still have March. This is why we kept seeing a +1 month every month for the past X months.
Here is my crazy guess. Someone f'ed up and pushed a new update to the code to undo the override for a lot of folks. This is why so many can see an EDD range without a VIN. The system sees a lot of vehicles marked as complete and it's trying to let some peeps know that one is coming. Now, I hope I'm wrong and a lot of you get your vehicles, but that's the only logical explanation running through my head that doesn't throw Tesla under the bus. They can't seriously f this up THAT bad, can they?
If someone here is a graphics designer, I'd love to see a beautiful meme that says, The Tesla Way, created. I want this to be part of my signature.