The moment there was a status windows I don't see anything that can be "too supernatural", we also have seen the peeking skill, and the fact that theres like 3 levels above skills like cloud and peeking makes it obvious there are going to be a lot of fantasy skills
Cloning someone is leagues beyond everything else that he has used. Even as a fantasy skill its very high fantasy - completely incomparable to status windows. No one else even has supernatural powers, yet he's sparring with a clone of someone out in the open and also using clones to replace people without even the people involved knowing. If the setting was reasonable at all he could easily be discovered by being that reckless and earn the distrust of the people around him or worse. It's not only out of place in terms of fantasy, but also in how he uses it.
None of this is the real problem, though. The real problem that exacerbates everything else is why the writer decided to give him that in the first place. So far it has just been a narrative crutch to fix plot holes and inconsistencies in a very unnatural way. Rather than enhancing the narrative it's just a means for the writer to prop it up. If that wasn't the case then the writer would have implemented it in a much more natural way.
