The biggest thing that irritates me from this is the implication that anybody is arguing for "historical accuracy" to medieval Europe in a setting that has dragons and goblins that shoot lightning from their fingertips. If, for whatever weird reason, the DM doesn't want potatoes to exist that's okay, but you're not waiting for the Columbian exchange to bring them over from the Americas because the Americas don't exist here. If you have a player character that's a shape shifting sentient blob who casts illusions and is on a quest to seduce every milliner they can find then a plain tasting sausage made from fine ground questionable cuts of meat shouldn't be seen as a stretch.

Additionally, as someone who majored in History in college, I can assure you that most people insisting on "historical accuracy" on any one or two things they learned from a tweet or a tiktok about are almost definitely getting fifteen other things wrong in any given session.