Yes, I do know that Bach's music is acceptable when played without much research on him, but such performances lack a certain important quality which brings his music to life. It really is easy to differentiate performers who really study Bach's music intently and faithfully with those who just play as if it's just another musical piece. It is the X factor which brings the music alive, with the audience being able to feel the quintessence of the music, exuding this magnificent godly quality, yet not void of the fragile humane quality so essential in all good music.
An authentic performance doesn't mean playing on period instruments at all. In fact, I've come across certain performances of Bach on modern instruments more honest than those on period instruments. Of course, some superficial effects of modern instruments will overpower the music sometimes, like the volume and quality of the sound, but the faithfulness of the performers to an authentic perfromance does shine through eventually...
There're just so many aspects of Bach's music regarding temperaments, interpretation, instruments, the connection between rhetoric and music, intrinsic value of his music etc to address and I doubt a whole life dedicated to his music will ever be sufficient.
Matthew 5:16 Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.And no doubt, Bach had glorifed God to the best of his abilities.