See, now that's revealing. If Dark Eldar players are having trouble with survivability, then an early FnP makes sense. Is that enough to allow a Dark Eldar army a chance to win on every scenario type? I don't know. Seems like the army's themed to table the enemy in record time, simple as that.
But I just don't feel like the codex reflects that. Even the current codex doesn't seem to create that kind of an army. Rather, it seems like the Dark Eldar army is an army designed to get tabled.
These debates would all be a lot easier if there was a centralized database of tournament-sanctioned results, I think.