From an Australian perspective the main factor in us not getting as many hazard reduction burns as we’d like completed isn’t financial it’s the weather. There’s such a thin window of time when the bush is dry enough that we can actually light it but the weather conditions aren’t so dangerous that to do so would be foolhardy.
We could spend money to eke out a little around the margins like using more paid firefighters to do mid week burns. It’s not addressing the main issue, though. The climate is changing.