Reminds me of "Here's two ducks, they're digging a hole".

https://www.youtube.com/watch?v=wfvEgWINUFc

More like eating a bowl of soup with an excavator.

I think it's like seeing someone build a spoon that excavates pools automatically. It's amazing, even as it hurts to watch.

I'd say disgusting. Like someone digging a swimming pool with a spoon, inside a sewer tunnel.