The name for that is gnosticism.
It could as well apply to most flavors of Christianity or religion in general, for that matter. Dostoevsky said the nihilists proclaimed, "God is dead, everything is allowed." But the nihilist's were wrong. If God is dead, nothing is allowed, and nothing is forgiven, and no one can get away with anything. Christianity says a man can do wrong all his life, and in an instant be forgiven of it all, and be rewarded for it with eternal bliss. Isn't that, the ultimate universal "get-out-of-jail-free" card that allows one to escape the consequences of their choices.
Hank
No, God still is characterized by perfect justice. One might sin all their life and then enter into a relationship with Him on His grounds, but that doesn't mean one's rewards will be as great as those who remained obedient and bore fruit throughout their lives.
Salvation via unlimited atonement for sin by Christ merely shows that the wrong has been paid for so as to alow a relationship with God. Rewards for eternity are still yet to be addressed until after the Great White Throne Judgement and when the books are opened.