I will start by aknowledgement of there is no kitchen by definition as the OP states -- this discussion has transformed into another form.
The meaning of Independant comes up in this discussion. I would conclude independant refers to not needing other places to go in order to function, not independant individuals.
Dwelling Unit. A single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation. How about a fraternity home.
A single unit -fraternity house
providing complete and independent living facilities for one or more persons, - everyone has access to sleeping , cooking, & bathing facilities,
Dwelling, Multifamily. A building that contains three or more dwelling units. - Each floor providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation.
Strat, I don't really care for the excessive AFCI requirements but I can only submit code changes as I hope someone with your dismay has also done. Is there anyway now that you could possibly view how the code official was looking at the situation? I can certainly see both sides, as with most codes not everything is cut & dry. Really the decision should be based on life/safety. So it appears you have no life safety issues with college students using there rooms as in the same way they do at home. These students are way less transient them a motel guest room as they bring personal items to live with them and also spend more time in thier rooms than at home. Right or wrong the AHJ has a responsibility of getting it correct without concern for your contract & cost.