What we know is that, for whatever the reason, the rate of catastrophic failure has been quite low in the past. When new information becomes available we are a

What we know is that, for whatever the reason, the rate of catastrophic failure has been quite low in the past. When new information becomes available we are able to update our risk assessment, it isn't necessary for us to wait for more plane crashes. I don't see any new information here though, the risks posed by Li-ion batteries and fires on airplanes have been well understood for quite some time.