He didn't have to use those exact words to refer to that time period. So, do you think 2 Thessalonians 2 is related to Satan's little season or not? I thought you indicated that you did.
Amils often interpret Revelation 20:8 as referring to all the unsaved nations being deceived after the millennium, and they appeal to 2 Thessalonians 2 to support this. But 2 Thessalonians 2:3 is explicitly about apostates---those who fall away from something they were previously part of. You cannot fall away if you were never saved to begin with. God does not need to send the already lost into strong delusion---they are already condemned. If Revelation 20:8 were only about the unsaved in general, the connection to 2 Thess 2:3 collapses entirely. The most coherent reading is that Revelation 20:8 depicts apostates, not the already lost, because only they require deception to rebel against God.
The point being, if Amil is going to work, that's the only way I can see it working. Except Amils don't want to entertain that apostates are meant in Revelation 20:8, not all the unsaved in general, if Amils are using 2 Thess 2 to support satan's little season. Nowhere in all of 2 Thess 2 are all the lost in general in view. As if it makes sense, for instance, atheists. That God needs to send atheists strong delusion, so that they should believe a lie, that they should be more lost than they already are. Because if God does not send them strong delusion this might mean they are simply not lost enough. So let's just do an over kill, so speak. Really makes sense. Right?
I will admit this. What I just proposed makes far better sense than Premil except Amils, such as yourself, don't even want to entertain it. You want Rev 20:8 to be meaning all the lost in general who would already be deceived during the millennium to begin with. Which then equals an over kill, thus equals nonsense, that satan needs to deceive someone after the millennium that are already deceived during the millennium. Rather than deceive someone after the millennium that were no longer deceived during the millennium.
Thus, per this scenario, they are among the saved during the millennium, then fall away after the millennium. Hmmm...maybe I should switch to Amil since this view could obviously use a little refining of things. This view possibly has the right idea but has the wrong ones meant in regard to verse 8, being the biggest issue.