The genius of this skit is not just the writing and the acting, but the production value. Think about it. Minimal takes. Cheap wigs that are part of the joke. One exterior location, minimal cast, a van, and a driver you don't have to shoot or cast. Daylight hours, to shoot limited takes with the child cast. They might have even "stolen" this take using the same crew setting up to shoot something else later that night. You don't need a huge budget to scare the shit out of people. Peele's style for "Get Out" was born from this, knowing that your mind provides more of the horror and the illness of this situation than you'd ever need from a bigger budget.
This gotta be the best Key & Peele skit of all time ๐