Maybe I exaggerated a bit regarding the assaults, but in the hands of a good pilot it's more than up to the task.
It's difficult to hit it though, and the loki cockpit is pretty well nestled into it's torso, you're more likely to core it out than cockpit kill it.
Though AC20s I've found seem to have an uncanny ability to cockpit things, especially when fired from the demolisher, maybe it's just the upward angle you shoot at to compensate for shell drop.