The real issue of 052D is not its armament, but seaworthiness, range and living condition. It is pretty exposed in the operation of anti-pirate in gulf of Aden. Fairly speaking in the current generation of PLAN surface combatant(056/A, 054A, 052D, 055) 052D has the worst living condition. It is said that 055 has fairly same crew number(about 300) with 052D(about 280) but with twice the tonnage so it has the best seaworthiness, range and living condition.
The point is, if PLAN's current role it to combat USN in a possile future west pacific scenario, it is completely OK for this kind of constraints currently on 052D. However, if PLAN's future goal is to become a real global navy, 052D is not nearly enough, in fact 054A would not be enough too. For this goal, PLAN need a 9000 tonne destroyer or just more 055, which is actually doable, and a 6000-7000 tonne frigate.