That's some quite chilling reading.
People never got information about what mistake or malfunction took their relatives' lives, but the leaked files draw a pattern of Teslas making erratic maneuvers when self-driving.
Also, there's a pattern that crashed Tesla drivers tend to burn to death without passers-by being able to help them - because passers-by depend on opening doors using their handle, not pulling people out through windows or cutting through structures with hydraulic scizzors. By the time firefighters arrive, the person is dead and the fire too hot to apprach.
I would never buy a Tesla anyway, since I like utmost simplicity in vehicles.
But the Tesla battery seems like a special invitation for trouble to me - a ridiculously high number of small lithium ion cells. Unless your production is 100% reliable, that's not a manageable configuration. A low number of large cells in manageable. Also, it seems that their battery is very likely to short in a crash. A low number of large cells have more limited options for shorting and more chances of the single series connection breaking. As soon as you have parallel cells, you're asking for trouble.