Okay, but I'm here to talk about anachronisms. Pitchfork and canned good? Sure, they exist together now, but for a lot of history, canned goods were just not a thing. So, hats, pies, and boots make sense, and maybe throw in some pottery instead, and bobs your uncle. I should probably take my meds.
I assumed any old villager would deal with having to shift hay in their yard be it from livestock or horses. Plus they also had torches which made sense, I assume any long pole like weapon was sufficient.
I was going to provide more evidence of my claim since your link provides no context on their origins at all, but it turns out the representation of Ninja as an oppressed lower class of peasants and farmers might just be a century old wives tale.