The US understanding of visual approaches speeding up arrivals is a bit flawed. Lining up a stream of visual traffic is no different to lining up a stream of ILS traffic if done properly. This is simply ATC being lazy and passing the buck.
Also, US controllers don't understand that pilots arriving from Europe are doing their approaches in survival mode with very little room for acrobatics. A night visual is not a healthy way to land a widebody given awake times of 16-18 hours.