This is PR mastery. Nowhere in the release does Tesla refute that owners have "bricked" their batteries. Nowhere in the release do they say that the battery can not be bricked by leaving it for a long period without a recharge. All they say is that it would take a period of weeks for a Tesla roadster to reach 0% charge, and that the Model S has battery disconnect technology that can extend this to several months. The…
Which is presumably why they're doing this:
> Starting with Roadster 2.0, owners can also elect for their car to contact Tesla headquarters once the state of charge falls below a specified level, and we can then contact the owner.