The main thing is there's no big engine in the front, so your entire hood can now be a crumple zone, and it's easier to design to be safe in impacts. The center of gravity is also much lower so there's a lower chance of a rollover.

On the other hand... Tesla's have a habit of locking their occupants inside when the car is on fire because SOMEONE decided mechanical latches were too expensive.

And as others have mentioned... the added weight also makes it less safe for everyone else outside the car.

The article is about batteries that might catch fire less often.

ICEs catch fire much more often than EVs already. The comment was specifically about that.