This kind of thing happens reularly at JFK as well. The area near the BA terminal is very difficult to operate a 747 in especially in heavy rain with standing water. There are very few taxyway lights and is is almost impossible to distinguish the taxyway centreline especially with sodium lighting in the background. You try to taxy safely whilst GMC is bellowing 'hurry up' at you. Armchair pilots, flightsim experts and Monday morning quarterbacks are welcome to have a go!