CC, Your discussion obviously refers to RWY07 where we merge two inbound flows together south of LIMES.
APP's problem lies in the groundspeed differentials between traffic inbound through MURRY which usually has a higher groundspeed vs the other sequence inbound through GUAVA. Accordingly, there are ATCs that will make the MURRY traffic number first and will slow and bend the downwind traffic ten or twenty degrees left to fit in behind. The only problem with this is that it takes nerves of titanium as the number one guy turns over SILVA and conflicts with the downwind guy. The other option available is the one you're ( in my opinion, rightly ) complaining about. FYI, we need you to be about 4000' at LIMES, so yes please, dive and drive.
However, this is off topic: maybe the HKATCA should invite this manager, in terms he cannot refuse, to get an APP rating, I'm sure that will be interesting.