One thing to keep in mind about webnovels authors is they never get a chance to write a first draft of an entire book, review it, create a second draft, send it to people to review, then have it edited, etc. Having 2-3 years to ponder over a book before releasing it.
They have to release chapter after chapter with no time to stop. Many talented American authors work would be just as shoddy if they were subject to this. Kindle unlimited already has some authors putting out crappy books that pointlessly extends plotlines for word count.