The way I see it, ICE vehicles have a different potential fire mechanism that isn't present in EVs.
Since ICE vehicles operate at much hotter temperatures, they inherently have a combustion potential due to leakages (brake fluid, gas, oil, etc). It's pretty common to have a bit of smoking from a fluid change, purely from accidental drips (even a little bit). If it's a continuous drip and hot enough areas such as exhaust, you can get a fire.
EVs just don't have anything that hot during normal operation. The operating temperature of both the electric motors and the batteries is much much lower than the temperature of engine operating temps (usually 200+F) or exhaust gas temperatures (something ridiculous like 1200F on catalytic converters, and 500F on exhaust piping).
Since ICE vehicles operate at much hotter temperatures, they inherently have a combustion potential due to leakages (brake fluid, gas, oil, etc). It's pretty common to have a bit of smoking from a fluid change, purely from accidental drips (even a little bit). If it's a continuous drip and hot enough areas such as exhaust, you can get a fire.
EVs just don't have anything that hot during normal operation. The operating temperature of both the electric motors and the batteries is much much lower than the temperature of engine operating temps (usually 200+F) or exhaust gas temperatures (something ridiculous like 1200F on catalytic converters, and 500F on exhaust piping).