Absolutely. We are not the humans God created. In fact, it is irreversible. Yet, God in his love, made it possible for us to have a second chance, which he did not extend to satan and his angles for whom there is no redemption.
This reminds us that the nature of their fall is viewed differently then ours: it is absolute. Ours isn't.
In fact, God created hell only for satan and his angels. That so many men will end up there is not God's doing, but ours.
[St. Augustine's] views changed throughout his life and in many ways he's beliefs are not quite what any side makes him out to be
The problem with St. Augustine are not his confessions but his Retractions. Not only are most people not familiar with them; they are almost impossible to find! Before he passed away, he actually recanted on a number of his hypotheses, enough to write a book with them.
I have Augustine's Retractions (took a bit of work to find one), and it is funny how no one, Roman Catholic, Lutheran, or Calvinist, really likes that book.