One of the most common complaints about Gege Akutami's Jujutsu Kaisen is that it's too complex. From its plot lines to its sorcerer hierarchies, from its cursed techniques to the foundational concepts underlying jujutsu sorcery, more than a few fans have argued that its complicated nature is more than likely to drive potential fans away. However, one fan theory's counter-argument is that Akutami knows what he's doing in telling his story, and the results are exactly what he expected.
https://screenrant.com/jujutsu-kaisen-complexity-greatest-strength-not-weakness/