Just to mention, the Airbus 330 does not descend at the same rate as the 777 or 737 or anything else in this case. The wing is very efficient and it takes more than 3-1 to get down. More like 4-1. Sometimes it may seem that the Bus is low, but in actual fact you are not. She is just trying to get rid of the speed.
Sure at EK things are way more conservative than other places, but I think you have to have flown both to understand the difference between Boeing and Bus.