Yep one of my two favorite warships, the Type 022, was China's response to the US Taiwan Strait insult. And it was vulnerable for all the reasons you cited. But times have changed, particularly with the integration of Maritime Militia operations into the overarching PLA organization. I believe my scenario of dozens of Type 022s ducking and weaving inside the MM forces that will shadow any CSG/ATG approaching the First Island Chain is a realistic one.The funny thing is that the US had theorized this attack itself more than a decade ago when China was building the Type 022. There was a belief China was pursuing a swarm strategy using Type 022. I believe that the conclusion was outside of the immediate area around the Taiwan strait, the strategy was not worthwhile because of the limited range of the actual ships, vulnerability to aircraft and submarines, and limited on board sensors (even with a datalink, it would still require more advanced assets being available).
I have yet to see refuted.