Because RNG and group strategy can have big impact on how often/not often you lose GL3. Turn 8 is pretty much a dummy fight that you should never lose GL3 unless you're dead but turn 6 briar method combined with RNG or turn 7 if you repeatedly get Shriek, again RNG.
And that's exactly what I was telling you. There are several cases where you can switch stances without a DPS loss. A Snap Punch under Fist of Earth is a DPS loss. Whether it's big or small is another unrelated argument.
And I will just agree that we disagree that it's possible to track what other people are doing when the fights requires a lot of concentration on yourself and the boss. For fights that it doesn't require that much concentration? Well you already overgear them.
Second Coil is not a moot point as you have no idea how tight the DPS check can be if you haven't seen it. Imagine a boss with adds estimated roughly double the HP of Twintania, no echo and you have to down it in the same 13 minutes but wait you haven't killed Twin.
