There are alot of shape animations here on newgrounds. But it's true that it only recieved this much attention after two of them made it to the front page. I can see alot of points being made in those animations made by Stamper, Johnny Utah, Egoraptor,...
Like how easy it is to tell a story just by adding a voice and making a shape go up and down. Pointing out the importance of storytelling and sound/voice acting.
It also brings out the point that they can just put any kind of animation they want on the FP. even a flash with just a blank frame. If you look at it this way I can see how it can seem disrespectfull for people who put alot of time and effort in their work.
But if you look at it from a conceptual point of view. There is alot to talk about.