In other words, you can't avoid the Carrier Interface Charge AND save money by getting the bundle for the lowest price. You are going to pay extra on something one way or another...
By the way, I was able to get the 2500 mile one way awards for a CLE-LAS roundtrip in early June. So they're not necessarily being restricted to the absolute pits of the travel calendar. But I agree with Rusty that these ultra low awards will not be plentiful during anytime with even moderate demand.