Well that's certainly one way to view it, but I am not sure whether it's how Feynman himself would have viewed it. To me there's an implication there that he doesn't view atoms in this context as passive beings since Feynman was definitely not a passive kind of person. I think instead the line suggests that even the smallest possible part of the universe contains all the beauty and complexity of the entire universe as well as life itself.

But you do make a fascinating argument. It's an interesting philosophical point to be sure.

EDIT: Perhaps there is at least potential for resolution if we give up the classical definition of atoms (being the smallest indivisible parts) in favor of that of modern physics, in which not all atoms are created equal. But that opens up a whole other can of worms.