Yeah, Cable at one point was designated a terrorist by SHIELD and actively hunted by them as well as Department K in Canada. Both had entire task forces dedicated to him! He was a bad mofo, no doubt. Since then he's softened some... but not much.
Does he? Have we ever seen him display the T-O virus in this series? Have we even seen his metal arm once throughout the past 11 issues? Or in any of his appearances since he showed up on Krakoa after House of X/Powers of X? The last we saw of his T-O virus or metal limb to my recollection was back in the Ed Brisson X-Force series, at the end of which he went back to the future with Aliyah. I find that very, very curious. Don't you?