God has used famine as one of the tools to get the Israelites' attention when they violated the terms of the Covenant with Him, forsaking His holy law.
The cleansing of Joshua's filthy robes in Zechariah 3 is a future application of the cleansing in Leviticus 16, when Jesus Christ cleanses Israel in the future.
The Day of Atonement is not fulfilled with the binding of Satan. Rather, there are numerous prophecies of God atoning for the sins of physical Israel.
Martin Collins, reflecting on the rich imagery of the holy days, reiterates that it is impossible to understand God's master plan unless one understands the symbolism and imagery of the Holy Days. Atonement has special uniqueness as a solemn day of affliction, fasting and rest, bringing about humility (or humbling) as a state of …