Yes, Tsukumogami is I believe an instance of animism [1].
AFAIK I am not affected by autism, but I distinctly remember when as a child I refused to eat something because that thing didn't "want" to be eaten. I guess that from my parent's perspective, it was just their child's whim-of-the-day.
But that memory makes me think that animism is something natural - perhaps some sort "bug" in the system that make us attribute intentions [2] to others.
[1] https://en.wikipedia.org/wiki/Animism [2] https://en.wikipedia.org/wiki/Theory_of_mind_in_animals#Attr...
Thank you for sharing your experience.
I remember a similar experience as a child when I started crying because my dad would pop a balloon; because I believed that it was not meant to be burst and asked him to repair it afterwards.
I can now take some comfort in the fact that I was not in fact, too weird :)