I have zero doubts the teslas are worse (hence the “educated guess” snark).

But also? This is not just holding up against water. It isn’t even holding up against salt water. It is holding up against battery acid, human feces, cleaning chemicals, oil, gasoline, etc. A car that has been caught in a flood is totaled and a biohazard. I don’t expect EVs to be particularly better.

I WOULD expect reasonable precautions to be taken. But if you are looking at standing water floods from hurricanes and the like? A few fires that are surrounded by water are the least of your worries. And there will be plenty of other fires for the disaster crews to deal with when they can.