Previously for most materials (especially the ones without any textures), the nodes were "off screen" way to the right, requiring a view framing to even see them. Also, as soon as multiple images were used, many nodes overlapped one another and the connections were all a mess. Simplify all that, and now each node type (coordinate, mapping, image, normal map, bsdf etc.) is in it's own column, with BSDF at zero coordinate. Each used image (along with any possible coordinate, mapping, normal map) is it's own row. The resulting connections are much cleaner.