The title and the fact that they calculated the damage down to the dollar are good signs that the value of the paper is in learning from its flaws, not the conclusions.

They didn't calculate health benefits that Pokemon GO induced by making people walk and bike more.

"policy recommendations require a consideration of both costs and benefits and we have made no attempt to calculate the economic benefits of using mobile devices while driving. We acknowledge, though, that identifying any economic benefits of playing Pokémon GO while driving stretches our imaginations"

They narrowed it down to just driving.

It's a bit weaselly to not try and find the value.

Napkin Maths, a movie is $5 per hour. Driving for a hour playing Pokemon Go is worth ~$5. But it's also worth ~$5 per hour walking. So the Napkin Maths fails.

It would seem to indicate a wild lack of focus if the same paper was analyzing traffic fatalities and the health benefits of walking.

Indeed. It’s tiring for me to keep reading papers written by people who believe in money as if it were the only driving force in people’s lives.