Tapestry Warden is incorrectly listed as illegal in pauper EDH as the commander

{"ops":[{"insert":{"card-link":"Tapestry Warden"}},{"insert":" is an uncommon.\nHow is it illegal as the commander of a Pauper EDH deck?\n"},{"attributes":{"link":"https://archidekt.com/decks/24052864/redoing_the_ships_tapestry"},"insert":"https://archidekt.com/decks/24052864/redoing_the_ships_tapestry"},{"insert":"\n"}]}