Earlier quoted context omitted.
Aegis is continually evolving with new sensors, processing, and missiles and far from obsolete. It's no coincidence that China is building similar capabilities into its own Destroyers. I definitely would't call the scale of missile defense in the fleet limited. Each carrier group would contain and be screened by Destroyers and Cruisers with several hundred interceptors ready to go between them.
This might've been the article that I read, which seems to disagree: "The inconvenient truth is that our Navy has 12 carrier groups and all are now obsolete. The Chinese have developed an antiship ballistic missile (ASBM), the DF-21D, nicknamed the “carrier killer.” It has a range of 1,200 miles and can fly at speeds higher than Mach 5. During descent to the target, it can fly at Mach 10. That’s like launching one in…
And the only test I can find from last year was this. https://www.mda.mil/news/21news0012.html