It's thematically shallow and lacks any real forward momentum or twists, which requires foreshadowing, a buildup of expectations and misdirection, then a subversion that is clever and not an asspull (i.e. writing 101 stuff). Owl House has a bunch of story but no real plot because of this lack of focus and bad priorities.
Imagine having all of season one be Luz and Eda traveling the magic world and having adventures in their mobile Owl House, with the revelation that Eda was a criminal as the season finale. Heck, let's say Eda is actually a princess, the oldest princess in the land, because she's a fucking failure who has been held back in school for years, and the magic council needs to capture her so she could graduate, marry, and fulfill her royal duties. This would actually parallel Luz's situation and make her question her own actions.
Instead we have a girl who escaped school only to go to school in another dimension in the span of a few episodes, negating any real personal conflict or challenge to her core beliefs. It is the exact opposite of engaging character arcs.