I dislike the term "semi-canon." IMO it has to be accepted as canon or not at all, both of which is fine for me. It's perfectly fine to say that Hildibrand is just a made up story in the narrative of Hildibrand himself, but it can't also be only
partially true to the real lore as well. If it's not canon, it's safe to assume that the Hildibrand story uses real story lore plot points to tell the story. Definitely a question for a competent lore person to ask Koji-Fox next time at any rate.
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The story was all slapstick comedy; of course there would be scenes of women knocking grown ass men through walls with frying pans, dancing zombies, dudes flying around on enchanted swords (or spears) and half naked men making golden hammers larger before using limit breaks on shit. If canon, those scenes can be likened to just about any slapstick scene that happens in an otherwise very serious anime show out there.