Ironically in these situations a more understated name would probably work better for PR. Headline of "Tesla on cruise control rear ends motorcycle on freeway, killing rider" gives a much stronger impression of it being the driver's fault.
Aircraft manufacturers are liable when their vehicles crash due to malfunction.
Similarly, if some airplane instrument is stated to require regular calibration to stay within acceptable error limits, I don't think the manufacturer would be liable if the instrument starts to drift when those calibrations are not carried out. Or if some crash-contributing decision is made based on assuming a higher accuracy than promised.
From the origin of autopilot from its aviation history, its pretty clear that autopilot was not designed to prevent you from hitting things.
Tesla's 'autopilot' system is cruise control but with more mental overhead when the human needs to react because the human is being hypnotised by lack of stimulus and has to keep a mental model of what the car is planning in their head.
And 'full self driving' is an automated way of making the driver as unprepared for novel stimulus as possible. "You have to sit here and do nothing, but react in milliseconds when I fuck up" is not a task a human can do.
Tesla know this and have known this since before they made the features available and gave them misleading names. So when the human inevitably doesn't react in time in a scenario where it is impossible for them to react in time, they are the ones responsible.
Full self driving is still in beta test, with present dangers that you have to accept.
All the accidents that happen with Tesla autopilot use are driver error, full stop. Just like its driver error to get drunk and drive, or be looking down at a phone distracted, and rear end a motorcycle. As someone who rides, Id rather have roads full of Teslas with FSD, because for every time it fucks up there are vastly more times for it to avoid an accident, given that you are not going to get rid of drunk, high, or distracted drivers.