Interesting point LAX,
From the business flyer perspective, a route needs to be daily - or say 6 days pw - otherwise the route isn't going to get close to its potential.
Much as I welcome the CX route, at its 4pw schedule, it is unlikely to attract much premium traffic.
When you need to be there on a certain day, you are not going to change your schedule (and inconvenience your colleagues) to suit the airline schedule.
Once you've finished your business you want to come home pronto, you're not going to hang around for another day for the non-stop flight.
My recent trips to HKG from MAN have been with EK - upstairs on A380s all the way there and back - a hard act to follow.
A daily non-stop on CX would be a game changer though.