I think this is a problem because a lot of what people use to shop an EV is the headline range number, which you are declaring is not accurate. This is false advertising.
If the EPA rating is consistent in it's overestimation, it would still be a perfectly functional system to comparison shop range. Putting that KNOWN overestimating number as the headline "range" estimation is wrong. My ICE car does not use the EPA combined estimate for my range because that would be inaccurate and make the number useless. The knowledge on how to build a useful "Range" value in a car has been constant since at least 2000, and yet Tesla, and ONLY tesla, seems to have it wrong. Meanwhile, as others tell, the navigation display shows a very accurate estimation, so why the disconnect? There's no requirement for a battery display showing the EPA range, they CHOSE to do that.