Again I throw my support to the BobbyBubby analysis, the characters are in the end aspects of the author's (or actually the audience's) mind.
A traditional show such as MFL is limited to the social straegems of the characters, in ITW the characters are all Sondheim, in essence. (Although again, I don't think it is his own self analysis, but rather an analysis of those themes for a generalized Storyteller, as SitPwG is not about Seurat or Sondheim, but "Artist." ) Representing different sides of a mental balance, is the character of Jack's mother, therefore she is speaking at the level she should.
I stand corrected, you are as vapid as they say.