There are occasions, though, where poor writing will turn you off no matter how brilliant the idea is. Query: give me an example of a story where the emotional aspects are truly separate from the logical ones? Is it a plot that hinges on every character being a bumbling buffoon? Is it a story that suspends disbelief so much, and at one point suspension of disbelief just falls down and shatters into tiny bits? (Everyone acts like a troglodyte with a mental handicap, the plot makes no sense, deus ex machina abounds, advancement of plot is unnatural and screams of "plot device!", the author is inconsistent with facts in his/her own writing, etc.)
If it's a question of technical aspects (grammar, punctuation, formatting, writing conventions) versus subjective aspects? Someone once said to me that a writer doesn't just write things down; the task of a writer is to arrange words so that meanings are conveyed, and things flow. IMO, technical aspects should not have any bearing on the author's sentiments concerning the emotions in his/her writing. If diction and technical aspects need improvement, the writer should be able to adapt and come up with a new combination of words, while still retaining the meanings he/she wanted to communicate in the first place. So no, I don't think dissecting technical aspects of a story hurts it at all.
