Interesting and very carefully chosen words in Boeing's statement
https://boeing.mediaroom.com/news-re...ts?item=130426, issued in response to media reports yesterday.
Boeing included the disagree alert as a standard feature on the MAX [...] Boeing did not intentionally or otherwise deactivate the disagree alert on its MAX airplanes. The disagree alert was intended to be a standard, stand-alone feature on MAX airplanes. However, the disagree alert was not operable on all airplanes because the feature was not activated as intended.
It goes on to state that if you did not opt for the AOA display, your disagree alert was "not operable". However, there will be an optional service bulletin to tell you how to make it operable on aircraft already delivered. So that's OK then.