If you believe that, what do you think is the cost differential between a Type-055 and a notional Type-052E?
Remember the Type-055 is 6 billion RMB and a Type-052D is 3.5 billion RMB
You have to consider them all together. If you build more 055s, the average cost could go lower, while that of a new iteration of 052X could go higher. One 055A plus one 057 may cost about the same as two 052E. I guess, for most missions, the former combination should have better performance.