The path of jhana vs the path of dry insight
This notion has arisen by the commentarial re interpretation of the (Yuga,naddha) Paṭipadā Sutta. More details are given in the following easy: Samatha and Vipassanā by Piya Tan. Also the modern Vipassana Movement has some effects in spreading this nortion. Some discussion about the Vipassana Movement can be found in How Buddhist traditions are transforming – and being transformed – through their relation with Western psychology by Ven. Sujato

Also see: The Experience of Samadhi: An In-depth Exploration of Buddhist Meditation by  Richard Shankman