Board Thread:General Discussion/@comment-27745396-20190804071052/@comment-27745396-20190804131348

That would actually be a fun foreshadowing, but it wouldn't explain something like why Weiss didn't recognize Nora's last name.

The only things that could explain that could be that either Valkyrie is a common last name in Atlas, Nora choose another name for herself, Weiss never learned Nora's last name in the first place or Weiss is made to be oblivious (and look like an idiot) just for the sake of plot.