I agree with your assessment of the situation and the rigidity.
However putting opinions aside, to be clear where everyone stands the Order Agreement states:
"Delivery. We will notify you of when we expect your Vehicle to be ready for delivery at your local Tesla Delivery Centre, or other location as we may agree
to. You agree to schedule and take delivery of your Vehicle within one week of this date. You agree that /me is of the essence and if you do not respond
to our notification or are unable to take delivery within the specified period, your vehicle may be made available for sale to other customers."