But are they supposed to? For example I have heard it said that in the northeast US (New England, NY, NJ) the forests pretty much evolved around humans (and rarely lightning) burning them periodically to control undergrowth. Is the same true in central Ontario? If not, then nobody is "supposed" to be doing anything? Unless catastrophic massive fire cycles are just a thing that happens every 500 years or whatever in that region...?

It's one thing to claim that bad forest management and not climate change is responsible, but it's consistent with climate change, and there are many areas in the USA that have adopted better fire and forest management practices in recent years and are still burning like crazy in seasons when they historically did not burn.