Is that true though? Most quality animated features included quality animation. The visuals of the beautifully hand painted early Disney movies were part of the art form. Toy story looks basic to us now but it being the first totally computer animated movie and the visual style that came with that was part of it. Movies are a visual medium, so I guess saying that the visual part of the movie doesn't matter much to you is like saying that the words a writer uses doesn't matter much to your enjoyment of a book.
The fact that Toy Story or Incredibles stand up even today, as much as we notice the limitations of the time, speaks to the art and effort applied to what was possible at the time. For as simple as they can be in places, they still used the tools they had access to well. Classics.