Now that I think about it, it doesn't make sense when I added that redistribution thingy. I tried to add that people shouldn't upload these asset packs, as is, to other game asset sites without crediting me, but then that defeats the purpose of public domain.
Since my work is pretty widespread already, I'll remove the redistribution note from the my itch assets here.
Also, there is a LICENSE.txt file in this pack. All my itch packs have this file.