Pretty much every airline will be weak outside of the destinations it most frequently flies to (eg DXB for CX). And since transit desks are usually staffed by the dominant ground handling company and clump a whole group of airlines together, the DXB experience speaks more of the ground handling company's incompetence rather than CX's.

But given the number of daily flights CX have through BKK their ground ops does sound a little shabby from the OP's recount - I thought it was SOP for any airline to at least have either their own rep or the handling staff meet a flight?

Best ground staff so far... AKL and HKG