In late 2017 American Airlines rolled out a new coach product. It featured less space than ever between seats (not just in coach, but less space for extra legroom coach and even for first class). There was less recline, too, and no seat back video. They found space for more seats by squeezing inches out of the lavatories. And they found space by taking padding out of the seats.
Not only was this new interior what’s going into their new Boeing 737 MAX aircraft, but they’ve been taking more comfortable Boeing 737-800s and ripping out those interiors to match what I’ve sometimes called “Torquemada configuration.”