Guys 10-across MCE 772 seating was posted on a single blog site. Unless it comes from an AA source, i'm holding my judgment.
And quite honestly, 80% of passengers aren't going to care about 10-across seating on a 777. All the airlines that do it are still enjoying hefty load factors and profits. AA's 77Ws in the main cabin at 10-across are flying out full, so its not like people are avoiding it. Sure it sucks, but hey whatever.
And quite honestly, considering the traffic on these 772 routes (mostly asian tourists, while the businessmen still fly in business/first), i dont blame them. These asian tourists book with a travel company and just pick the cheapest option.