Character Creation is a very individual process at this point. When you're sitting around the table you bounce ideas off each other, form relationships, and pick out niches as a group. Here the narrator has to police all that to get a similar result. And after all the characters are written, the narrator has to request a revision in order for the players to edit.

If there was one screen with commentary that showed details of all the characters the group could collaborate. Also some means to keep the characters editable until the narrator moves them to final state.