I'd rather add a 9 on the scale for extreme outliers. There may be a total of five stories in all of CYStia that'd merit a '9' length, and at the moment the 4/5/6/7/8 thresholds are fairly meaningful in getting an impression of how long the story experience will be, and account for an overwhelming majority of content on the site.
That said, no one would make this kind of a wish without a reason, I'm looking forward to your storygame that's been in the oven for the last two months even more now.
According to Infinite Story, Eternal's word count is 648,067, while on Word it says the word count is 656,743 so I'm not exactly sure what either site is including or not including.
I like it when you accept your inferiority to your superiors.