They followed up with a new ex HKG email quoting Edinburgh at below HK$3K, yesterday (Monday Jan 7). You can't see anything below 5.3K and irritatingly the pop up ads on this website are quoting the rea prices.
My UK account is getting offers that are just ridiculously expensive compared to BA or CX.
The only slightly sensible prices I'm seeing from this part of Asia are in J ex MNL