Not sure about the loads to TPE but its common knowledge that loads to LGW are low due to the poor press that HKA has be getting .The TPE was all over the local HKG press about how come all other carriers managed to land whilst HKA could not.Furthermore they keep annoying pax to the extent they refuse to get off unless compensated.This has happened more than once.It seems HKA has a lot of inexperience in management pilots that will need to be addressed before they are granted normal airline status by the regulating authorities .
Lets hope the HKG CAD do their job and sort them out so that professional pilots can aspire to normal operations and careers.
There is no other reason why HKA cannot make a killing on the LGW or TPE routes as they have traditionally been profitable to all other carriers