Operation Rescue CrAsh!
it's ludicrous for anyone (C/A fan or not) to believe that Venus was their closure or ending. These two have been through hell and back and it's not fair to forget about them, especially since you've remembered couples who only have half the substance C/A does. However, I do have faith that you haven't forgotten. After all, they did dominate most of season four.
Bottomline, both were a HUGE part of each other's lives. So neither Craig or Ashley's story will not be complete unless they're revisted.