This is a short term setback in the perception of the public. A year from now no one will be reporting on the 1 in 10,000 Model S fires that happen each year from driving over metallic debris. Sure people will talk about it, but its still the safest and best car out there. Safest in that no one has died and perhaps that will be the bigger story one day, the fact that there are no fatalities with the Model S despite some horrific accidents (ie. Mexico). If people were dying from these fires then we'd have something to worry about, but everyone has been safe and insurance pays for a new Model S. Perhaps insurance premiums for the Model S will creep up a small amount but that is the only long term drawback I see here.
as an owner and long term investor I am not worried.
Yeah, hopefully. As an investor, I'm not worried for the long-term either. It's just that much more pressure being put on us against people who don't understand.