Why is argumentation considered so harmful in these teachings?

Chapter 2 strongly advises against argumentation, explaining that it is a significant spiritual impediment. The text states that a mind inclined towards argumentation is filled with an abundance of ignorance and Maya, leading to bad thoughts and false logic. Such a disposition makes a person unfit for self-knowledge, as they are instead devoured by ignorance. The consequence is a life devoid of happiness, both in this world and the next, with unhappiness being a constant presence. The author, reflecting on the instruction "Do not engage in dualistic explanations," characterizes argumentation as a useless effort that prevents the purity of self-interest.