I believe you meant Muilenburg, not Mullenburg. And the communication “mistake” Muilenburg referred to was in reference to an AOA disagree indicator, not the MCAS system.
C’mon guys, you are supposed to be where aviation pros go to get the straight news on the aviation industry. The available evidence indicates these crews may have been overwhelmed by too many irrelevant cockpit warnings, and I have read nothing from a credible source suggesting these accidents may have been avoided if the AOA disagree indicator in question had been functioning. A brief review of headlines regarding Muilenburg’s statement makes it clear the wider (uninformed) news industry is attempting to connect this AOA disagree light issue with MCAS. Why are you helping them?