ICE cars do this all the time. It doesn't make the news as much as a brand new product doing that.

Granted, the "EVs are less likely to start fires" take is also misleading. It's not usually doing a "like for like" comparison, because the majority of ICE fires are in very old and poorly maintained cars. Things like wires chewed through by rats, oil leaking out of gaskets and accumulating, stupid wiring for speakers, etc.

It will depend how gracefully the average EV ages when owned by the average person who ignores maintenance.

Keep in mind we've had old lithium ion batteries for two decades now, and we don't see your average phone store randomly burning down. Or those kiosks you can sell absolutely clapped out, old phones to. How often do those burn down?