Runewriters is a fantasy story!
After reading wikipedia's definitions of various subgenres of fantasy I guess it'd most closely match Comic Fantasy, but I sort of tend to shy away from listing RW as a comedy. LIKE, I hope it makes you laugh! but I also hope you get attached to the characters and care about them, too.
As regards the linked article, I guess I've never really thought of genre as important for anything except for pitching? And even then it's not really a NECESSARY element of a pitch; not something you'd need to sort out when you're putting together a story idea. I dunno, how do you guys feel about that? Is it an important part of setting the tone of the story? If I were inspired by a particular genre I could see wanting to research the like...themes that make that genre work, but otherwise I feel like I'd work in the opposite direction; setting the tone that fit the story and then later finding the words to describe it.