To be clear, when one searches this actual specific flight (route, time, and date) on AA.com and does "view available seats", what is shown is a 3-class aircraft, with the results for "coach" displaying 12 rows of 3x3 Y seats as well as 5 rows of 2x2 J-style seats, and the results for "first" and "business" each displaying the same 5 rows of 1x1 seats.

This would lead a viewer to believe that this is a 3-class aircraft with the F hard product being sold as J and the J hard product being used in an analogous capacity to MCE (presuming that elites could select one of those 2x2 seats when buying Y).