When you have 100 or so submittals finding the 10-20 that might be missing values is a pain, filter allows quick find and selection to do a bulk update, if we had a search for Null. Of course the search for null needs to be defined in help, null is not a common term to clients. Maybe if you put a space in it searches for null.
|Job Title / Role||SE|
|I need it...||3 months|