They're betting that they can make supersonic travel sustainable and profitable with a new aircraft and engine design. The Concord wasn't either of those.
The business case is apparently solid enough that several airlines are partnering with them during development.
This is the first actual demonstration that they can achieve supersonic flight in their demonstrator aircraft, so it is a significant milestone but they are years away from their full-scale aircraft.
The business case is apparently solid enough that several airlines are partnering with them during development.
This is the first actual demonstration that they can achieve supersonic flight in their demonstrator aircraft, so it is a significant milestone but they are years away from their full-scale aircraft.