The Fantasyland dark rides tend to have buffers to transition between scenes of wildly different emotions. If Snow White was designed like Pooh, after exiting the cottage you'd immediately be inside the Witch's Cottage.
Yeah buffers are better some with the older stuff but I don’t find that to negatively effect the experience on Pooh personally. With that said, the only place Pooh doesn’t have one is between the Blustery and rainy day and I’m not really sure it needs one there.
Snow White is hardly a great example though. I’d say Snow White in it’s current form is much more “disjointed” than Pooh.