You have no idea how wrong you are. On any car, you can have too much positive or negative toe on the front or rear wheels and the car will still drive straight. On a Tesla, the car learns from you how to center itself as you drive, so it will really hide extreme alignment issues.
I have been saying it for months on this forum: You are completely used to Tesla messing up the alignments of body panels, doors, windows, taillights, headlights, charge doors, etc. (and leaving loose bolts, etc) Why in the world would you think they aren't messing up wheel alignments on new cars??
If you buy a Tesla, your first point of business should be to get the alignment checked by someone other than Tesla. They stink at it.
I bought my own $100 laser tool so I can check front and rear toe on all my cars, 6 of them. The Tesla was way off, and the SC couldn't be bothered to do it right, so I did it myself. After getting the alignment right, the road noise from my tires went WAY down.