My hometown fired departments newest truck is a 1970s military surplus tanker that they purchased in the early 90s using money raised through pickle card sales at the town bar. Which is now closed.
As you said, first responders are potentially exposed to lots of hazardous conditions in their daily responses. Not all of which can be planned for. There are ways to fight battery fires. Dumping thousands of gallons of water onto a vehicle with a mostly sealed battery compartment isn't the most efficient option. Firefighting techniques need adapted, but that's not the fault of the EV manufacturers. You can't expect company's to not release new products because of low percentage for fires, that fire departments havent bought the best equipment to fight.
I mostly agree with you, but it's not unheard of the manufacture of a new product to give you instructions on what to do during failure. The EV manufactures just release crap with no standards and as far as I know have not released what to do during an fire
All I have seen about EVs is you need to submerse the battery in liquid, and you can't lift up a Tesla and put it in a pool.
The manufacture can make slots for fire hoses or water sources to be able to attach during a fire.
Accidents happen with cars\trucks, it's the nature of the beast. There is no reason to now have it planned on what to be done when it happens from the manufacture's point.
Remember the Samsung Note 7 batteries catching on fire that got recalled? I don't know of any other cellphone that can catch on fire. Maybe a bad example but the manufacture stepped up to do something.
The companies making the EV have the attitude of "pay me screw you". They don't care about the consumer and just do whatever to make a quick buck. I remember when Rivian increase the price of the trucks that people already paid and locked their price in saying if they wanted their truck they had to pay more money after already having an agreement. They only reversed their decision because of the amount of backlack and people canceling pre-orders completely.