Idiotic dialog of Kill Bill Vol. II

Rating: Null/10 (6 January 2008)

Since Quentin Tarantino is now an established motion picture director, it seems that he can now get away with just about ANYTHING! Witness the mind-numbing, jaw-dropping moronic dialog between John Carradine and Uma Thurman at the end of Kill Bill Volume II:
Carradine (after being given a death blow by Thurman): Pai-Mei taught you the five-point-palm exploding heart technique! Why didn't you tell me?
Thurman: I don't know. I guess I'm just a bad person.
Carradine: No, you're not a bad person. You're a g-g-g-g-good person.
Does Tarantino PURPOSELY write such hackneyed dialog or is he just merely verbally challenged?