Same,
i'm an avid D&D dungeonmaster, but the spells not being exactly or 100% right in this novel as the tabletop rules its not bad.
Things change, and need changes, when going to another type of media for a better narrative in general, just like what happens when books or comics become tv series or movies.
And even when playing there's always homemade rules, so some spells acting different its not really a problem
Just the spell referrences alone already made my day when playing this