Slower-than-normal pacing in a shounen manga adaptation? CONTACT THE PRESS!!
But yeah, I agree that Bones were gracious enough to be faithful to the manga, but it just didn't work in the end. That's why they're speeding up the story soon, I hear.
Frankly I expected Soul Eater to be an average shounen and it turned out to be much more stylish and well animated than I thought.