There's no fucking punchline, they're literally just recapping the premise of the show through a modern-era country song with hip-hop influences (the worst legacy of Old Town Road) and occasionally saying something about South Korea not being America. I hate it
You know how when someone is doing an impression they'll do "Oh hi Rudy Giuliani" so you know who it's supposed to be? I thought it was a little insulting when they did "Hi Daniel Craig" to Daniel Craig.