Guess you missed the point. You can probably put 30-40A through a 12 gauge wire, but it is unsafe to do, so they rate it at 20A. Same concept... Onward we go...
Shame it's not correct. The rating is the maximum the manufacturer wants you to pull through it in order for the product to last and be safe to handle. It's not the electrical maximum. There's a huge difference between peak ratings and continuous. The rating they give is the continuous rating of the device, not the peak.
Right there is the issue. It is the maximum it is able to. 60W isn't the maximum the brick can put out. It is the maximum power that is safe to draw through the brick while keeping temps in spec. It is
not the very maximum the brick can handle. Otherwise, the brick would be piping hot, maybe burn someone or their house down, and wouldn't last long (especially in a house fire it caused).
You keep thinking that the electrical limit equals the rating, and it is not. The brick can actually output more than it is rated, but they need to keep the thing safe to use, so they rate it lower for continuous use.
This is irrelevant and not sure why faulty adapters is being brought up. If the adapter is faulty, who knows what to expect.
I keep saying I've seen this in real life, but I guess you don't want to accept that.