I saw it the other night, I was disappointed with it to be honest - same reason as you, should have been more graphic.The shaky camera was annoying. Also, they removed four of the key characters for the story arc which annoyed me. Some camera angles were really strange. What I did like was the ethnicity of the tributes by region in the film which was hinted at in the book. Lenny was pretty good, I hope he agrees to be in the sequels.
I seem to love Dystopian-themed stories. Have you ever read The Running Man?