tl;dr Yes, we should do more controlled burns. No, our current situation has very little to do with "traditional burning practices".
Racism against First Peoples isn't the biggest or near one of the biggest reason we haven't been doing controlled burns in California -- leftwing greenies have opposed burns because they oppose man's intervention with nature.
_Was_ racism a reason? Sure, but the past is not the present. The present situation with fires is mostly driven by leftwing politics.
The greenies didn't just oppose "traditional burning practices" but also _modern_ burning practices that are used in other US states, and they have much more control over California's policy (and even Fed Interior policy) than racist bogeymen.
Even this correction is being driven by those politics, as a return to "traditional burning practices" after (real and imagined) historical injustice.