Though it may not seem like it at first, the problem is ideological. Somewhere along the line CA's left/progressive ideology picked up a deeply ironic tenet that the world must remain absolutely unchanged by human habitation; that whatever the state of nature was on some arbitrary day in the past, we have a moral duty to keep it that way. The strongest example of overreach is that absolutely no species may go extinct…
We have hard evidence of what the last 100 years of forest management policy has done.
Nobody is proposing "nature can never (be) change(d)". The point is that that we tried to do something different (fire suppression) and it manifestly did not and has not worked.