I have heard that too. If that is true, and I think it is likely, maybe that is exactly how the Holy Spirit will operate during the tribulation period.
Yes, when we go away in the clouds with out Master, the Spirit also withdraws and goes with us, so on earth there will be no restrictions for Satan to be restrained after we go. The humans left will be exposed to the meanness of him and his fallen angels as never before. don’t you think?