Sitting here blearing contemplating that the Medieval Minecraft modpack may have settled on the name because many (most?) of the largest and most famous public modpacks focus on giving you the most space-future technology possible. Electronics. Advanced explosives. Custom tech systems that make default redstone mechanics look simple.
In comparison to that, a modpack where you craft metal armor, hit people with melee weapons and top out the scitech curve at "skillet" may delude itself into thinking it's somehow medieval. It's extremely wrong and I will die fluffed about it, but with that context I become able to follow the possible sequence of events.