@criver manga is a rich medium. It's not superior or inferior to writing or animation, it's simply a different medium. With different rules. Like the use of panels and how important they are in telling the story (if you've read anything by Junji Ito, you know what I'm talking about). Saying that manga authors would be writing actual novels if they were good it's an insult to the visual part of manga. Comics can tell a story with the same intensity (and sometimes even more intense) as can the written word. There are actual novels that are shit. This manga is also shit, but that doesn't make most manga shit... The art in this manga is okay, not great but decent. The story is messed up and not thought up enough. Comparing two so different mediums is plain wrong.
(honestly this manga reminds me of fairy tail, just as good art but complicated plot that doesn't make sense and just as shock-invested as it)