Exactly!

[It's like a tension has gone out of him that Signless finally gets it. Even if he can't parse the full weight of leaving the movement behind, his advice is meant well and from a good place.]

You're not going to get anything done by just sitting around and moping. If you hadn't died, stuff would have been different, but you can't change it. And yeah, that sucks, no shit, but what else can you do?