Agreed, unless the yellow line is displaced accordingly always aim to overshoot to ensure the main gear straddles the yellow line. Many taxiways are Max 36M span and these require very careful taxiing. I fly a 738 but the principle is the same as with our winglets the span is a whisker shy of 36M too.
The principle is exactly the same as an articulated truck. If all those drivers just followed the line there'd be a load of crushed cars, dead pedestrians on sidewalks waiting to cross the road, etc etc
