We must remember that there are three time sets of antitypical Levites

Answer to a question in PT September, 1943 (see page 143):

"(1) the Gospel Age Levites, i.e., the tentatively justified Levites: (2) The Epiphany Levites, i.e., the vitalizedly justified Levites, i.e., the Great Company and the tentatively justified Levites, i.e., the Youthful Worthies; and (3) the Millennial and post-Millennial Age Levites, i.e., the Ancient Worthies, the Great Company and the Youthful Worthies."

"While some Scriptures applicable to the Gospel Age refer to the Great Company as Levites, this is done from the anticipatory standpoint of the finished picture of the extreme end of the Age, the Epiphany. It would be a mistake to call the Great Company the exclusive Gospel-Age Levites; yea, it would even be a mistake to call them the only Levites of the Epiphany, since Youthful Worthies are also such Levites, though tentatively justified merely."

Bro. Johnson lists the Youthful Worthies as being Epiphany Levites. Notice what he says about the anticipatory standpoint of the Great Company.