They need money for all that.
I dont mind the graphics,i enjoy the gameplay but yeah some nicer graphics would be nice,but nothing too fancy,you must remember that when massive armies meet some PCs won't handle that,so by having outrageous graphics you won't get many people playing.
Graphics don't make the game remember that,there are lots of eye candy games out there that are just full of fail.
Give it time,i like to think of this game as a bottle of wine,it gets better with time.
"This is no rabble of mindless Orcs; these are Uruk-hai. Their armor is thick, and their shields broad."