There are certain boundaries that shouldn't be crossed. A ship costing less than 12 pts, for instance. A ship that is relatively as sturdy as the X-wing shouldn't be less than 21 pts. You want to compare it to the Phantom, fine, but there is a reason why the cheapest is 25 pts. Not loading up on the 4 Atk ships without losing your upgrades.
But the real test in in the 5 Interceptors vs 5 X-wings. That doesn't exactly make the Interceptors look great, now does it?