Yeah, I'd argue that the humor comes from the contrast between Nathan's ridiculous expectations and reality. The show gets a lot of mileage out of Nathan trying to force real life into reality TV conventions. For me, the joke read as Nathan expecting a bunch of maids getting off a bus to be an exciting moment like…

Yeah, they opened when I saw him too. All I could think is, "man, this rapper really sounds like Baby Cakes."

Yeah, they opened when I saw him too. All I could think is, "man, this rapper really sounds like Baby Cakes."