i do not know what config metrojet had on their 321 re door 2/row 9
i think their config was the legal A321 max at 220Y so row 9 would be 2 rows ahead in zone A (fwd cabin, fwd of the door 2)
looking at the manifest, row 9 and 10 has 3 seats left and right, and row 11 has 2.
looking at the pair of three rows of seats in that video i think that they are row 25, by 3R door. The front row of seats has a tray on the back of them so could they be row 23, and row 34 is missing?
this would be consistent with a large break up of the aircraft rear of the wings.