I'm not sure I understand what you're asking for, or what your point is. Why that specific threshold? Lithium in EVs also doesn't catch fire by itself, it's usually a fault somewhere else in the system first. Most bizzarely, I think you're assuming that I'm taking a side here? Like....there are no sides to take, it's just an article meant as a reply for someone who asked if ICEs ever spontaneously combust.

EVs do have brake fluid, but the brakes are used significantly less in EVs than in ICE vehicles. (Most slowing is done via magnetic resistance from regenerative braking.) Presumable this means brakes in EVs are subject to a lower rate of degradation caused by use.