so now that 093B is out in the sea and probably even conducting initial patrols. Which seems quite likely 3 years after the first one launched that it is commissioned by this point. I think maybe this article is coming up because people inside the pentagon are getting the initial reports on their performances and raising the alarm.
I remember back in the late 2000s, when 093s were first doing their sea trials and I was pretty excited by the news. Soon enough, articles came out basically where US navy was just saying they were really loud and later USNI updated their charts on just how loud the first 093s were.
So, this is quite the expected confirmation. I think it's reasonable at this point to think 093B is at least as quiet across the spectrums as the last bunch of LA class and possibly better than that.
Which imo, is enough to sail undetected once you get past the 1IC line without SSN tailing it.