It is wrong. Here's a little conjecture on my part.
The windlass that raises the anchors is forward under that little anchor deck. I don't remember if it comes with the kit. Campbell's drawing shows the windlass without the chain on it, I think.
But the chain should go into a "spurling" pipe as close behind the windlass as possible, and down into the chain locker. There'd be no good reason, and lots of bad ones, to have it running around the deck. Once the chain comes off the windlass the only force that will stow it below is gravity on the vertical part of the chain between the spurling hole and the top of the stack of chain in the locker. Including a long horizontal run, and the friction of the chain on the deck, only confounds that. Toward the end of raising the hooks, when the stack of chain in the locker gets up towards the underside of the deck, you'd be defeated and the windlass would be piling chain up all over that fore deck.
The spurling pipe usually has a quarter dome scuttle over it, open end facing forward.
I cannot for the life of me find a photo of that part of the deck. Perhaps tourists aren't allowed up there.
Looking at models, FWIW, the closest I could find to what Revell says to do is one where the chains run back past those two companionway covers, and the spurling pipes are sort of to either side of that hatch, spread apart far enough that the chain misses the hatch coaming.
Without a clear copy of the drawings, I cant see what that hatch is over. If it's a cargo hold, those chains would be in the way down below.
If I were to build the model, I'd set the spurling pipes a short distance behind the windlass and have the chains disappear into them.