Yes, the Holy Spirit is the perfect conduit of God’s Word.
God used Daniel through the Spirit to show forth his Word and prophesy the future of Israel and the world. The perfect Spirit gave the inspiration, Daniel was simply the imperfect messenger.
God used John the Apostle through the Spirit to show forth his Word and prophesy the future of Israel and the world. The perfect Spirit gave the inspiration, John was simply the imperfect messenger.
Eph 4:11-16 is as true today as it ever was. God always uses his imperfect messengers like you and I to show forth what the perfect Spirit is saying.
God uses flawed humans because that is the only kind of humans there is.