I don't know, I haven't ever seen him walking around eating people, have you?
I connect his binding with that same event of Babylon becoming 'a hold [prison] of every unclean spirit, and a hold of every unclean and hateful bird'. With the destruction of their earthly city, Jerusalem, the Jews had no more a valid viable religion to compete with Christianity, and their deception of the Gentiles in this regard ceased. As Jim said, the gospel has since been freely preached to the nations. The persecutions and relentless conivings and conspirings of apostate Judaism ceased, and the new covenant came down from heaven in all her glory as the New Jerusalem and all the Gentiles have since had access to her.
When Peter penned the passage you quote the Jews were still actively resisting and persecuting Christianity at every opportunity.