A list of things we don't know is infinite, for example nowhere does it say that Tesla will not compensate all P85D buyers for not delivering on the power spec, by giving each P85D buyer a free Roadster 2020. Like you and say, it could totally happen because nowhere does it say that they won't do that, right?
My old boss used to say "hope is a very poor strategy", and I agree with him. You don't see Elon giving cars away to people who simply give them one monthly payment without signing some type of level commitment to pay for the rest of the car, do you? Because he knows that hope is not a successful strategy, even if it works out on rare occasions, like winning a lottery (which mathematicians call a "bad decision with a good outcome" by the way).
On the bright side, your attitude may serve you well, you will never ever feel cheated. Even if your Tesla car dies tomorrow and Tesla refuses to fix it, you can say "nowhere does it say that Elon won't give me a billion dollars soon, and if he does, it will be so worth my car dying, so I'm happy that it died".