There are no qualifications in his statement: Leo calls Mary the Meditrix of all graces, Co-Redeemer and at the side of God, a position Stephen saw Christ occupying in Acts, chapter eight,
and Leo adds, “To thee we lift our prayers, for thou art the Mediatrix, powerful at once and pitiful, of our salvation.”, “Queen of Heaven”.
I think a Pope understands the Catholic doctrine better than Nat. Law does.
And Paul just forgot to mention Mary to Timothy?