That's interesting.
I actually thought that the seat AA installed on the 77Ws is quite comfortable (even more so with that nice fabric design they had before they ripped them off and replaced them with pleather) sans for the width. When I first sat in one I was surprised at the amount of recline the seats featured.
The 77W overall is the best plane in the fleet. The J seats are fantastic and the Y seats were pretty nice compared to the others. CX has the new version of the Zodiac Cirrus on their a350s and it continues to be my favorite J seat out there.
I did see an article on one of the blogs saying that AA will be picking a new seat for 2023 onwards. Interesting