I agree that learning to build a fire AND properly put it out is an important wilderness skill. It should however, be practiced in an area with plenty of on-ground wood, in a safe already established fire pit, and during weather/seasonal conditions when forest fire risk is low. Perhaps if those who build fires were taught how to do it properly, campfires would not be the leading cause of forest fires.
I think the point AT was making that she has observed people totally ignoring regulations and building fires when conditions are not safe. I happen to like and use campfires, but honestly, they are a lot of work to do properly. If you are not willing to take the time or know how to do this, then use the stove. I figure building a fire to cook on adds about 1/2 to a hour to camp chores. But then, for some of us, these "chores" really are pleasure.
Few people put out fires properly. You really have to get dirty to do this. Douse the fire, stir, get your fingers in the pit and FEEL for temperature. Particularly feel around the rim of the fire pit. Make sure there are not tree roots in the bottom of the fire pit. Also before making a fire, clear off all burnable material 3-5 feet away. Look up - do not build a fire under tree branches.
Twice a campfire has saved my sorry self. But most of the time a campfire is needed, you have to know how to build it with wet wood. This is not a skill you learn by building a few recreational fires. I learned this after 35 days one horrible June, when it snowed every day and we were totally relying on campfires to cook. (The "old days" in the 60's). Believe me, we would have loved to have stoves! It was work, work, work! And constant anxiety.