Krishna begins his answer by acknowledging the reality Arjuna is struggling with. Yes, there are two paths. This is not a contradiction. From the very beginning of creation, two approaches have existed: Jnana Yoga for those inclined toward contemplation, and Karma Yoga for those inclined toward action.
He addresses Arjuna as Anagha, meaning sinless. It is a reassurance: your confusion does not make you flawed. Your question is valid. Now listen carefully.
The key insight here is that both paths are legitimate. One person's temperament and life situation determines which path suits them. A thinker drawn to analysis may walk the path of knowledge. A person of action, embedded in worldly duties, walks the path of Karma Yoga. Neither is lesser.