Except that for the Tesla it's days after reaching zero charge, not months.
From the manual "Important! Caution: If the battery’s charge level falls to 0%, it must be plugged in immediately. Failure to do so can permanently damage the battery and this damage is not covered by the New Vehicle Limited Warranty."
It looks like one of the specific cases on this, Max Drucker's Tesla, was it bricked two months after bringing it to 25% displayed charge level. So the car wasn't even run all the way down. Presumably the time to failure is much shorter if you bring it to the 0% displayed charge level at which point it shuts down. Your guess of days is probably correct.
In the first link here you can even see the emails between Tesla representatives and Drucker, so Tesla is 100% aware that this car was bricked and the cost to fix it was over $40,000, which was the "friends and family" price for "loyal supporters", not the standard repair rate, which is presumed to be much higher.
Because they have emails on the subject, which note that even Musk is aware of the situation, their PR efforts to suggest the cars can't be bricked and the allegations in their statement are not only false, but are intentional lies and misrepresentations by Tesla, showing bad faith. It is absolutely a cover up, coupled with the start of a media smear campaign that we see getting in gear in the technical press.
edit: I see that people are so threatened by reality they are paralyzed into downvoting because they have no coherent response and so censorship is the only action that makes sense to their tiny reptilian brains. Above are actual emails between Tesla and an owner that prove Tesla is aware of the problem, bricking is possible, the repairs are a minimum of $40,000, the blogger is telling the truth, and Tesla is blatantly lying and misrepresenting the situation in their response. Downvote all you want, it only shows what a failure you are and won't change reality.
Of course the manual is going to say that. If the manual said it took weeks or months for the battery to discharge then people would dilly dally and forget and suddenly there would be a lot more bricked batteries out there.
If you tell people to plug their cars in IMMEDIATELY then maybe they won't let it sit around for more than a week or two.
From the manual "Important! Caution: If the battery’s charge level falls to 0%, it must be plugged in immediately. Failure to do so can permanently damage the battery and this damage is not covered by the New Vehicle Limited Warranty."