The Homage: Even given their length, there simply wasn’t time to give the Orcs (and the Uruk-hai much in the way of personalities, aside from a couple of the beasts in the first three films.

The Hunt manages to pull this off in its short running time.
 
Lesson For del Toro: Use the fact that Smaug the dragon and other villains (goblins! Trolls!) get more time and give them real life.

It’ll add depth to the film and finally use the creatures as something more than lumped-together enemies. No Uruk-hai though: they haven’t been created yet…