Looking at the seat map for a flight next month on an A350, row 36 is an exit row (and it looks like a full door exit, not even the window hatch type, based on the position in the plane). Seats 36ACGJ are all flagged as Preferred Exit at an extra cost ($/miles) to select, but seats 36B and 36H seem to be freely available. Is there something wrong/negative about those seats that would make charging for them unreasonable? It feels too good to be true. I saw that in a chunk of the front rows aisles and windows are Preferred and the middles aren’t, but when I look at another flight on an A321 I’m seeing the same pattern in the front 6 rows, but the (window hatch, I think?) exit rows 26/27 are showing premium all the way across, middles included.