Short answer is “yes”. It’s the same way a homeowner can be responsible if they negligently leave some issues on their property and a person falls to their death. The ultimate responsibility is the person behind the wheel. That said, I’d argue Tesla is also liable. To what extent I don’t know, but it was clearly a contributing factor.
In the real world we have pretty extensive precedents about consumer product safety, and manufacturers are very often liable for design decisions that lead to harm, even if nominally speaking the user was supposed to be ultimately responsible.