Not if you look at the price differences between the SR+, MR, and LR. $100/mile of range is very typical BEV pricing. Within, and even higher at times outside Tesla.
One easy way to calculate how Tesla values range is to look at where they've allowed software unlocking. SR to SR+ is ~$5,000, which includes the $3,000 AP upgrade. So 20 miles is $2,000 which works out to exactly $100/mile.