It's not misleading. They state that some cars measure times with the rollout and others do not. what would be misleading is if they said that all times do not include the rollout, but then some of the cars actually did include it.I think you're missing my point here. You're correct in saying that most "enthusiasts" didn't know about rollout before they knew about Tesla, but I don't think that justifies the fact that Tesla uses a different standard of measurement across their lineup to purposely mislead customers. That's like advertising one car's top speed as "300" and another's as "162", then clarifying in fine print that their measurements are 300kmh and 162mph (I'm exaggerating but I hope you get the point).
Sure, people who care about performance specs are more inclined to buy the performance model (and I own a Model 3 Performance), but I'd still take the difference between the 0-60 times into consideration in order to justify the price difference between the two trims. Either measure both with rollout, or both without. It's misleading.
You're trying to assert that Tesla is misleading people by literally telling them more (and precise) information than other manufacturers do, and that is very amusing.