I don't think it would be hard for them to make dodging mechanics for arrows possible, since its already implanted with magical abilities. Besides this is an action rpg and not a turn based one... However I do agree about not being able to shot arrows while running/ moving, but it is sensible design choice and a realistic one if you'll think about it. The main problem with following arrows is that they stun.
D2 combat is usually you against many opponents (4-6?), while it is pretty fast and easy to get one of their hp bars to 0, they also do quite a lot of damdge on you since they are a group, so if your stunned from arrows you might lose hp very fast before you kill them. In some areas with strong opponents you can die just as fast as you can kill them...
