As correct as that is, I don't think anyone was actually thinking those were good ideas. There's something really innocently funny about this episode of history, and honestly it's fun to just think about what-ifs. Could you build surge walls all the way along and use some kind of dam? Combine all the power of every helicopter to lift the whole thing? Big ships are fun, unwieldy objects getting stuck are fun, sometimes it's just fun to mess around.