LV426 - On Lemmy no one can hear you scream

For me the stupidity was there right from the first episode, where the miliarty team entering the ship crash make a ridiculous decision to jump down a broken flight of stairs which nearly kills them.

That's when I realised ah - they aren't doing that because they as characters would reasonably choose do it, they're making a stupid decision simply because the plot dictates they get cut off.

When characters act in unbelievable dumbass ways just for the plot, it totally ruins the immersion by making the supposedly "invisible hand" of the writer very visible indeed.