The manga is skipping over stuff, which is a mixed bag. But in the book, by this point we see how Wrath came to be, so there was plenty of combat there.
I get the author is gonna try and make us like this douche of a prince, but first opinions will make that hard because there is nothing likeable about him so far.
It's not a good thing because it disrupts the flow and makes it disjointed. If they're gonna cut a story arc, they need to remove all mention of it, so the story doesn't feel disjointed. Instead, they should have cut it down to fit into a single chapter to not disrupt the flow.