Thanks for the clarification. It is a simple gospel matter that Satan has been bound, and has always been bound in one form or fashion.
Do you believe the binding at the start of the 1,000 yr reign is different?
If I may respond, I believe the binding of Satan in Rev. 20 corresponds to the binding of the strong man in Matthew 12:28,29, and represents the present kingdom age when the gospel by the power of the Spirit has freedom out among the nations. Jesus is presently plundering Satan’s domain, and many souls are leaving the kingdom of darkness for the kingdom of light.