These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Brilliance: Why do Giulio and Alissa swing their spears instead of piercing? Because Giulio is used to using swords (and Gungnir has spikes that allow it to function as a swinging weapon) and Alissa only learned how to fight with a spear was by watching Giulio. Though Alissa later learns how to use a spear properly, as both her spear skills that are learned later are piercing.
Genius Bonus: The Inferno are named after alternate terms for Norse gods.
They Changed It, Now It Sucks: Fans of classic SRPG games who had no experience with Sting until this game effectively had tantrums over the fact that there are no free maps for Level Grinding. They weren't happy with the other subversions of the genre Sting introduced, either.