I agree with you. Cargo cult is when physical goods are delivered by some high-tech society to a lower-tech one (https://en.wikipedia.org/wiki/Cargo_cult).
Buying stuff from Amazon is more like cargo cult than Clubhouse is.
Buying stuff from Amazon is more like cargo cult than Clubhouse is.
Similarly, "cargo-culting" can be applied to a piece of code or script everyone copies and reuses without actually knowing how it works and then being confused when they've effectively built a wooden airplane and no goods have arrived.
It's very common slang in tech circles.