The offensive power of any carrier is its air wing. The more jets, the more flexibility. Strike packages are set up according to the assignment, whether it’s to rain down a world of hurt, or a surgical strike.
The more aircraft on board, the more flexibility.
In a world of limited budgets, it's expensive to keep a supercarrier on station for a mission that it's overkill for. All I'm saying is that IN ADDITION TO our supercarriers, it might be useful to have some smaller carriers that can put aircraft on station for a fraction of the cost of sending a supercarrier.
For some missions, sending a supercarrier is like renting a tractor-trailer to bring home a few bags of groceries.