If I recall, it was AAB at QR who said that customers cared more about legroom than seat width. If that's true, then the news will hardly be noticed except by plane geeks and industry pros. Also, if customers really voted with their wallet on 10-abreast, most airlines which already had it in place would have reversed it. Unless their is collusion against the consumer by the industry, but that would not be legal....
The problem with CX's CEO is that he seems to dislike both customers and pilots. He can't have both, he should pick a side and continue to alienate the side which he does not select.