Do the scholastic sects say that chan practice is something separate from themselves?

Dogen famously said that there are no Buddhist schools, and the idea there is [this or that Buddhist school] is the creation of demons, etc. [Dogen's Eihei Koroku, discourse 7.491, reads:] > The Buddha Dharma fundamentally has no outer name or form. Later > people falsely established many random names. Althogh facing the wall > at Shaolin resembled [dhyana], do not call it Zen School and misguide > sentient beings. First, is Dogen saying that Zen [which is misguiding] is nothing separate from scholastic "sects", and if so, is he right? Second, what do the more scholarly schools - whether Theravada, Mahayana or Vajrayana - say about Zen?