buddha knew how to shut up, unlike osho. osho were alive, he would endorse my comment :)
the smart thing about buddha is he kept the discourse always on the root ("dukkha" , look it up). It's very easy to loose one's way, which osho did, if you see his life's progression.
zen or meditation, is not just about developing a capability. With a pill, or drugs/steriods, you can gain something...but what is the use of all this, if you dont gain the wisdom (the ultimate end goal, which you usually get by walking the path. )