The problem is they can come out at up to a 30 degree angle so that would mean leaving out a lot of seats especially on a wide body quad-engined plane. Even on

The problem is they can come out at up to a 30 degree angle so that would mean leaving out a lot of seats especially on a wide body quad-engined plane. Even on a narrow twin you'd already lose like 6 rows which makes it basically unviable.