The article referred to a retired Concorde pilot who'd studied the accident reports in detail. There were some things that I'd never seen before, such as the plane was overloaded by several tons. Furthermore, the plane's center of gravity was too far aft, always a very dangerous situation. He also said that the flight engineer shouldn't have cut power to the second engine. According to him, those things doomed the flight.

A Concorde has a very low aspect ratio (wingspan divided by average chord), so drag increases sharply at low airspeeds. According to articles I read last year, a Concorde has to be going over 400 MPH to climb on only two engines. It wasn't going nearly that fast, so climbing was impossible. When the plane lost the second engine, it was doomed, especially if it was overloaded with an aft CG.