Driving optimal revenue is right for the airline, tho the loss of 7-BE seats is lamentable. 45J for these birds seemed too high in the current revenue environment with most airlines optimizing T7s in the 30-40 range it seems.
I had heard a rumor of transitioning the T7 fleet to the 74S seat, but I'm not sure they would do that just yet given the fleet isn't that old.
Hopefully, all remaining inventory in the future will be used toward GUs vs. the current situation.