Singapore is 8h nonstop from Sydney. Tokyo is 9h. Los Angeles is 13h. Qantas was considering launching a 20h nonstop to London before COVID.
It‘s a much better value prop than halving transatlantic travel time, which is 6h, the smaller side of a reasonable sleep.
I work at a place that doesn't pay for anything beyond basic economy for business travel, which isn't that uncommon of a cost-cutting measure. I'm definitely not going to be able to expense expensive in flight wifi. To say nothing of work productivity on a cramped tin tube.
At least one of the startups working on it has promised comparable or lower per-seat mile cost, and has orders on book: https://www.thedrive.com/the-war-zone/36952/boom-rolls-out-i...
The kind of stuff you need to be in person for tends to be the stuff that doesn't give you the advance timing to plan travel.