Because ultimately, this is a world where lower-to-middle-tier Transcendents compete in power, while high-tier Transcendents compete in concepts.
Once transitioning to the Fifth Rank, Transcendents' demand for destructive power isn't as strong.
For them, the abilities that touch upon Laws and concepts can better display their role in high-end confrontations.
For instance, as a Sixth Rank Demigod, Ivyst possesses several conceptual Extraordinary Abilities like Devour, Evolution, and Annihilation. In confrontations with the Creation Demon, she repeatedly forced him into desperate situations. However, due to the deep foundation of High-dimensional Demon that the opponent possessed, she ultimately was defeated.
At the end of the day, if one wants to progress towards the rank where the Divine reside, understanding the Laws and concepts is an essential path.
And now, despite only being a Second Rank Transcendent, Lynn has unprecedentedly hastened this process.
Indeed.