I don't think that any of the Tesla owners really thought their cutting-edge cars would be worry free. They have the same expectations as someone who uses beta software, and in exchange they get to experience an amazing car. Also don't forget that we have had problems like this with mechanical devices in cars, too. Slowly, we started using regulation and other tools to mandate additional safety checks (like the latch on your hood that prevents it from blowing back and smashing your windshield) to prevent those from happening. We're nowhere near anything like this for chips, really.

On the other hand, this is what the future is really like: in a few days or weeks, Tesla will release an update to fix this, and will probably deliver it wirelessly to every affected vehicle, and it won't be a problem any more. That's magic.