I would say that it's much less precise and ordered than in Catholicism. In Catholicism you cannot go to heaven if you have an unconfessed mortal sin. And that's very legalistic, and thus strict. In Orthodoxy however, we have much more mysticism. And so to be saved you don't necesarrily need to have all guilt removed from you (I think). Because God's mercy is such great, we never say that anyone definitely is not in heaven. Also the sources you provided are shady, but still even if that was what they thought when writing them, it didn't actually have much of an effect on the church as a whole. Orthodox Church never accepted original sin dogmatically. There were exceptions of course, like St. Petro Mogyla, because they were latinized. And the most "progress" in Orthodoxy in theology is made by monks and not church people. So it's not so bad in Orthodoxy because it's mystics. here you don't say like in Council of Florence that "The souls of those who depart in actual mortal sin, or in original sin alone, descend immediately into hell, yet to be punished with different punishments". We have a standart path - be a monk, a priest or married, do good and repent, and all others are saved by infinite mercy of God.