The two major problems are really between the Lanka and the Vajracchedika, or the Yogacara and Madhyamika schools of thought around the time of Bodhidharma.
Yeah, warrior pose was most likely created in 1940 and surely cannot be compared to horse-stances!
PS. I just got my primary sources out of storage, so I should stop talking-out-my-ass like Wickedpedia just about anytime now, haha