Yep, well said... same story here... burns in many places that are managed for their natural values, like Algonquin park, are usually seen as a bad thing and must be put out ASAP. Further north, where there's less development and people, fires might be left to burn themselves out naturally.
The long-term effect in protected areas might be to shift forest composition towards more shade-tolerant species, pine forests being replaced by sugar maple especially, or hemlock, or fir or spruce. Or logging might be allowed to mimic the effect of fires.
In southern Ontario, IIRC the effect of burning forests intentionally by natives was to increase the amount of wildlife feeding on the pioneering species that colonized the burnt over lands, which in turn improved the prospects for hunting and gathering.
There are some prescribed burns going on in some protected places... in Toronto, the black oak savannah forests have been recognized as rare and valuable and since the old growth oaks and pines depended on burns for their existence, there are burns being carried out again. Here's one at the north edge of the park just south of Bloor street.
https://www.youtube.com/watch?v=03Rx-Gh3t9Y