It could be more appropiate "Fire! Some may die in 5 seconds". Maybe no one died yet in the 5 seconds mark, or maybe someone die but we attribute that to the heat more than the fire, or just don't count them as there was no one important for us.
But that is no reason to calmly stay there doing nothing while the flames keep rising up.
You know whats the right thing to do? Stay with the facts and avoid hyperbole. "There is a fire in Hall B, I'm leaving the building" and people will follow you with no questions asked.
Its a matter of how you communicate.
I'm tempted to rewrite the abstract in a better wording so people can compare realize what an difference that makes.
> ... "so people can compare realize what an difference that makes."
It makes zero difference, because the people who could change the course of all this aren't listening at all to those who speak up, regardless of what is said or how it's said. They're firmly convinced that money is literally more important than any life (even their own), and no words can or will change their minds. Literal decades of inaction despite growing numbers of actual climate scientists speaking up about the issue has proven this.
But that is no reason to calmly stay there doing nothing while the flames keep rising up.