You're 110% correct. Noise cancelling has taken a few hits via firmware throughout the year. The unofficial/rumored/speculative explanation is that there's been some legal haggling between Apple and Jabra over patents. Apple's response has been to, technically speaking, nerf the Pro's ANC via firmware updates. I've been hoping Apple throws money at the situation to make it go away but, since Jabra's tech is used by the DOD, it's probably "complicated" in ways unlike most Apple patent disputes.