In a lot of the videos (including this one), you'll see houses burned down inside of subdivisions with buildings around them still standing. Streets should be natural firebreaks, but the destruction paths don't follow any standard patterns with regards to firebreaks (both streets and dirt).
There are also multiple accounts of people claiming the police were ordered to keep cars in dangerous areas, even when the roads past them were empty and had no emergency vehicles on them. The police were ordered by someone(s) to keep people in (https://odysee.com/@TimTruth:b/Maui-police-block-exits-witness:0). Whether intentional or through negligence, this increased the body count significantly.
Also start at 8:25 in this video: https://invidious.poast.org/watch?v=9mppuqs7YF0
A car with zero damage next to two cars that got hot enough to melt aluminum (usually around 800C for the alloys in cars)