I would be highly surprised if that's the way it worked at youtube because that's not the way it works in other players: There's an takedown API/dashboard acce

I would be highly surprised if that's the way it worked at youtube because that's not the way it works in other players: There's an takedown API/dashboard access to which is given to large content producers ( networks, large studios, transmitters, broadcasters, rights holders ). It is them who triggers the takedown action and selects the "reason" which triggers an automated action by the platform. Most of the "content had been taken down by mistake" comes not from internal system but rather from other parties having access to the takedown API.