Um, this specific bit doesn't really do anything without carrying on. But assuming you meant the comment more generally:
The idea is that everything above has led to us having a extacct to edit - either an existing one or a new one - and so we end up at the form to do that, with any success or error messages shown above the form. I'm struggling to remember why I went this route, since it was so long ago, and I'm sure it could be done differently...