We will never know for sure but more likely it would have been like spitting on a house fire. The fire was jumping over their efforts due to the wind conditions and embers.
Hell, they have firefighter there now from 9 states and 2 different countries and can't stop it.
Let me help your See Spot Run mindset....
If you throw a lighted match in a box of combustible components, then it is going to explode, cause a big fire, etc.
If you remove most of those combustible components and then throw the match, the effect will be less severe.