Repentance is about looking forward not just backward.
It's not godly grief until people turn toward something liberating. It's just grief.
Matt 4:17 From that time Jesus began to preach, saying, “Repent, for the kingdom of heaven is at hand.”
Jesus points people to what's in front of them.
You said: "people not aware of their sins fit the bill"
And this is a broken mindset.
Because the REAL issue isn't that people aren't aware of their sins, it's that they are not aware of their freedom.
If you want people to truly repent show them freedom is possible and in front of them so they can turn toward it.
And it's possible through grace. That some would call ever abounding or "hyper".
C.
Hyper grace is new man made phrase to place people who take advantage of God's grace and use it as a ticket to sin.
The phrase hyper grace comes from over abundance of God's grace making those who actually fit the bill not aware of their sins because they relish in the vastness of his grace not taking responsibility for their own mistakes and thus do not have a repentant heart.
Often times however many are called hyper gracers under false presumption, I have been called a hyper gracer myself but I do not take advantage of his grace and I don't see it as a free ticket to do as I please