Food isn't sold burnt from store shelves. Of course people may 'toast' it to unsafe levels. That's an educational issue.
Also: I've never bought this, but I just found this premade product, which is sold in my grocery store and is known to the state of California to cause cancer.
https://www.safeway.com/shop/product-details.197151007.html?...
https://www.fda.gov/regulatory-information/search-fda-guidan...
You could be enjoying some all natural peanuts and be exposing yourself to a highly carcinogenic byproduct of a fungus that grows on them.
Hell, people were doing that for millennia until some scientists actually discovered it.
Toasting just increases the amount present.