maybe it is an eater egg reference to time. The way I see it there is a big time laps, when they are on the Island Arron is only 3 months old, yet after Kate's trial he appears 3 or 4 years old. They really wouldn't wait that long to arrest Kate and arrange trial. Maybe there is a time difference of 3.2 years? I don't know it just seemed like the 3.2 meant something to both Ben and Miles.