Does this burning at 200 j/g really mean it would be a lot safer or do you chalk this up to be company propaganda. Clearly it is a lot lower than gasoline, but since 600-900 proved to still be an issue, could this be enough to stabilize people’s fears you think?
Other obvious factors than density are: Price, weight, durability and safety.
These excel ar price durability and safety. Which is also mentioned in the article.