I am not convinced on the Knowledge leads to faith argument,I do not think there has been a strong case or evidence to support it here but that is just my view.
And IMO in light of the bible from Genesis through Revelation, the story of God's dealing with man is one of His gradually turning up the light, patiently working with and cultivating humankind to the point where we might just be ready to receive the full light once we're shown it, once we meet it in the person of Jesus Christ, and not turn back to the flesh. God is calling, soliciting, drawing us to make a willful response, just a weak one at first most likely, by giving us the knowledge and grace to say "yes", while also allowing us the possibility to say "no". Adam originally said "no" and was allowed to fall, suffering the consequences. But God had a plan in place already of course, and Adam's fall was just a detour on man's journey back to rising again-as we
will-with the help of grace.
The entire story of the fall of man and the centuries of pain, suffering, sin, and death that ensued really makes sense only if there's a
reason behind this temporal experience, this exile. And that reason has to do with our living in a state of existence effectively
apart from our Creator, apart from the partnership or communion with Him that we were
made for, with all that experience might entail including living in a world where
man's will reigns, and not always at all reigning
lovingly as our Creator would do, and as He does in heaven. Here we can develop a hunger and thirst for justice or righteousness, a hunger and thirst for
God. Here we might learn the wisdom of Jesus' words in John 15:5:
"Apart from Me you can do nothing." Adam didn't get that concept in Eden.
If not for this educative or formative aspect of living in this kind of world, walled off from knowing where we came from, if anywhere, what we're here for, if for anything, and where we're going, if anywhere (aka "lost"), and a world where evil, and by contrast good, can be experienced-can be literally
known-and so identified and separated and chosen between, then there's really no reason for such an ofttimes ugly world at all. God may as well have just stocked heaven with the elect and hell with the reprobate from the get-go and avoided this world's evils and suffering. But here we can gain an appreciation for being found, for embracing goodness, for choosing God when He calls, for saying "yes".