Yes don't question ATC.
Even if they give the robotic instruction " Maintain 160Knots to 4 DME contact Tower now". When you are 3 miles behind the only Turbo prop in Hong Kong GOV J31/32 or what ever it is.
I'm with Yonosoy on this, just chill guys. Go with the flow, and if it turns into a doozy fill in the forms.
Don't blame the ATC guys either Mainland or Hong Kong they do it because it is written. Have a look at the Chinese AIP and read the routing descriptions. You will understand how black and white (ie. remain on the Airway A461) they are, and how it transcends into their daily operation.