CKtalon
That might look the same but really isn't. Movies acquire much more work and effort than translation/editing and can cost in the millions while taking years to produce. I'm not saying translating or editing isn't hard, but there's a big difference between making a movie and translating a novel.
I understand the point you're making, but it isn't exactly a good reason. All this really does is make people go to third parties and have it illegally translated if Webnovel won't do it.
I guess it doesn't matter though, I doubt anything will change.