Overall, someone finds himself unsurprised as to what's happened. It by no means makes him feel any better for it, and in some ways, he wonders that this could have been avoided if he'd just made more progress in his researching. Realistically Tech knows he would have largely been unprepared for it. He's a soldier, not a surgeon, and even in the removal of their inhibitor chips, that had been mostly through aid of technology, and such equipment was not something readily available to him.

The sigh he greets his former general with isn't necessarily directed at Vader himself.