Telling the truth is not disparaging.
Obsessed with fantasies might be one of our unfavorable natures. Exaggerating past achievements, overestimating ourselves and underestimating others also let us make bad judgments.
Good judgment helps you deduce more information from limited clues...
Sorry, I don't see the causality. The mentioned "new nuclear submarine" was actually completed in "the past five years since the 18th National Congress of the CPC" (2012-2017).
The answer is no, or not for now, and it has been confirmed by several sources.
The combat system on 052D and 055 resembles the upgreadable AEGIS, which ensures the exploitation of its potential (in the form similar to Baselines).