If BoD somehow gives the supernatural virtue of 'faith' then it would reduce the importance of the sacrament of baptism.
Agree. BOD cannot provide supernatural Faith, as this is only available from Baptism, from God. No human can will/desire to have anything supernatural, because we aren't God and supernatural things are above us. If we say that BOD can provide supernatural Faith, then we are espousing the same error of "salvation by Faith" that the protestants support, who say one can gain salvation by human means (which was condemned by Trent).