It's very simple. Anyone with an ounce of soul is desperate to see Concorde fly again, but it must not be allowed to happen because People Will Die and, more importantly, Others Will Be Blamed. So don't even think it. It is verboten.
However, certain steps might be taken in the preservation and restoration of this or that airframe, providing nobody involved is thinking forbidden thoughts. That would frighten the horses and the lawyers. Only the pure in heart may attempt these steps.
So be pure in heart, and feed the lawyers sugar lumps. You may need to ride them into battle one day.