This narrative is part of the disinformation campaigns and smoke curtains that pour after the wildfires.

Is was a possibility in the past, but the current situation is different. More often than not, when we examine the coordinated internet rage bait about sinister projects to build in the burnt areas (solar farms, AI plants, etc...) this projects don't exist really. Houses will be simply rebuilt by their owners, no soil change expected.

More often than not, the people starting the rage bait post from a different country also.