Agree this isn't worth stressing about. Two main comments:

1. The front row in Y class on all KA aircraft is always Row 22, even if it is fact only the third row back on the plane (as on the A320).

2. As OW Emerald, I find that using OLCI will get me an aisle seat, but not using OLCI will allow the airport staff to assign me to a bulkhead seat, even where these show as full on OLCI. I therefore avoid using OLCI.