Brian_Fisher
Basically because Webnovel review system is broken. Even the worst novels on webnovel have a rating above 4.0 .
Even a constructive and respectful review that would make sense (for example 3.5 because -1 for unstable releases and -0.5 for average grammar) would just pull the rating down. And a lower rating on webnovel, means being perceived as a story not worth reading, being lower in the rating filtered list and so less exposure.
If you add the fact that contractor authors income (and those wishing to be) depends litteraly on their exposure, you get the current situation.
Also for short stories, the 10 reviews are mostly fake or from review swaps to get a rating.(10 reviews needed).