Plus with Tesla's solar roof, you might say that the additional risk of solar is zero, since it's (probably, I'm guessing) no more dangerous to install than any other roof.
We'd need long term statistics to fully develop a model of risk. I.e., (admittedly, anecdotally) within the first year or two of having his monocrystalline setup, Dave[1] suffered damage to one panel (aerial debris) requiring a service call to replace the unit. If this happens on a semi-frequent basis (i.e. one panel per ~3 years per install) the risk profile changes not insignificantly.
I've had workmen on my roof for damaged slates due to high wind, so again, with a Tesla roof this could conceivably be a negative death rate of the solar tiles are stronger than standard tiles, which they claim they are.