Agreed. This is one that shouldn't become a thing now, or maybe ever depending on how practical vactrains turn out to be.
It's probably dead in the water anyway unless they make a private-jet-size model. It turns out these super-busy ubermensch executives actually can find the time to be up in the air, if it's cushy enough.
The main reason that supersonic travel technology hasn't taken off is that consumers are more price sensitive than time sensitive, as long as the flight can get them most anywhere in a day or two.
I wonder... why now then? Just the inevitable progression of technology? Or perhaps, do they think there's enough rich people with the funds to pay for it to make supersonic commercially viable now?
Yeah, the Concorde was super expensive and still operated at a loss. With video conferencing these days, you have to imagine the audience for supersonic travel is even smaller.
An interesting perspective that I heard once is that it was the Fax Machine that killed the Concorde. Before faxes, people (businesses) had to physically transport documents, which meant that for large financial companies in Wall St and the London City the Concorde was a great business tool and worth the expense. When the documents you're carrying enable signing a multi-million business deal in the same day, a £6000 ticket is a completely reasonable business expense.
The fax machine rendered that business need obsolete, and leisure travellers can deal with an extra few hours to cross the Atlantic.