No, "cargo cult" means imitating someone's activities that lead to a certain outcome, without understanding why did that work and why it might not work for someone else. In fact, to be precise, imitating the perceived activities: your coconut headphones might look like what that US army guy had on his head, but they don't have the whole technical and human infrastructure behind them; or, your Web search page might look exactly like Google's, but it won't produce similar results by itself.