I am not sure why the anime had to end; perhaps it is due to production costs, though I suspect it has something to do with the episodes catching up with the manga chapters and the producers not willing to throw in fillers.
What I particularly liked about the final episode: The new uniforms of the Exorcists and LenaLee's new neither short nor long hairstyle, as seen on the cover of the fan/guide book. :D
True about production, but I enjoyed the fillers...
And agreed on the new outfits and Lenalee's hair style. I hope they continue it later on after the mange get ahead. Now I have nothing to keep interested until Vampire Knight Season2 :cry:
I hope they restart this series later on, it truly was good. I mean, over half the show was filler, but it still rocked, and it's not like Inuyasha with the constant kidnapping of Kagome, and bullshit escapes of Naraku.