We will know more with time for sure, but I figure things like this at the very least get us all to consider improving practices altogether. there is risk of electrical and or gas fire in a garage and fire is a risk just about anywhere in one's house. You don't have to be paranoid about that risk, you just need to mitigate it. giving the risks some thought after buying our first EV, I putt in a smoke detector in my garage... not because I was more at risk but because there should have been one there all along! Anything high energy, especially a gas car but certainly also an electric car, creates increased risk of fire. catching a fire early is key to reacting adequately. I recommend taking codes seriously when wiring, even instruct your electrician to go a little bit beyond code/standard with respect to gauge of wire (like down one gauge) for EVES's or for any circuit that will carry a continuous load for many hours at a time... our 80A charger is fed with 2 gauge wire, most would say that's overkill, but after seeing some goofy things like our blink charger wiring heat up because it was specked for nothing more than the 2011/12 Leaf, even though the charging station would attempt to draw up to 40A at 240V if I plugged in the Tesla S. It's crazy that anyone would wire a plug for a specific appliance rather than the max rating of that plug, but it happens! The older I get, the less I try and cut corners with stuff like this. I even had an extra heavy duty breaker box installed when the solar was put in, in advance of the Tesla S, knowing a lot of juice would be flowing through that thing over the years. And after reading about someone smoking their main line here on TMC a while back, I even asked the utility company to make sure the main line on the house was indeed substantial enough for high continuous load. Of course none of this is going to help crappy workmanship, so choose your electrician wisely!