I don't think you read what I said here, since the point you bring up I actually kinda agreed with. See:
My argument is that unnecessary text is bad, this is true for both short and long works. Only including necessary content in a story is not going to force it to be short, it is only limited by the writers skills and imagination of successively deeming what is necessary for their story. Now in all honesty I have not read Ulysses by James Joyce, but it would not be considered one of the finest written books in the English language if it had unnecessary, chapters, paragraphs, or even sentences. And Ulysses is over 700+ pages depending on which edition your reading, obviously not a short story. Before I say more, I think Ulysses does a perfect job proving my point that a polished, well written story does not have to be short.
Participating in this little debate I started really thinking about what separates Visual Novels from conventional books in terms of content. Now while I still stand by all the points I made, I have come to realize their is a difference between Life-stories, and Stories in general. Good stories should have deeper and more thematic content in them. A good story is a story you don't just finish once your done, but rather one you have to digest and analyze. A Good life story, (Which is the category I place VNs in) should serve as a magnify glass into a characters life and the characters around him/her. In general VN's progress chronologically day by day, and rarely will skip large gaps of time. For example you won't generally play in the perspective of a kid, and then suddenly the story skips to when the child is an adult or adolescent, (unless its a flash back). Good VN's generally also have a theme that focus around the monotony of life. So because VNs generally focus around the monotony of life it is natural for their narrative to be longer then most other genres of stories. However, even using this as an excuse I still think a well written VN should try to condense its content when it can, and should avoid scenes that don't serve to develop the characters or the overall theme of the story.