I don't quite follow the concept of "you don't edit in 3d". Editing real life footage is a different story since you usually have tons and tons of footage. But where I come from, we don't animate and render tons and tons of footage unnecessarily, just so we can cut it all out later. We only model, animate, render what we'll most likely use in a final edit. Therefore, many editing decisions are being made way before the actual editing stage.
I've been in several situations where I really would have liked to have a sequencer.
