The way it was presented was Leland was control and that was it (though they have shown control to take over other people). As soon as he was destroyed all the enemy ships just stopped didnt they? Which kind of supports that.
I suppose the only justification (other than the meta need for the closing of plot holes) was that there could have been a control copy/proxy around and it was a safety first move. Otherwise it seems like something of a break down in logic for me.
Not that I hold it against the show too much, I think it basically worked - and worked better than I would have thought, it just jarred in my mind at the time and still niggles a bit.
just had a look on reddit and this makes sense
They were very vague about it, but I think there was a difference between control, the AI from the present, and Leland/Control, who was from the future.
They were very vague about it, but I think there was a difference between control, the AI from the present, and Leland/Control, who was from the future.