Gee, the legal community and people who know what's going on think it's fine, but people with zero legal training and experience like Ms. Wente prefer to rely on their gut instincts - and those guts are full of hatemongering messages spread by our own government for most of the period of Khadr's incarceration. 
So the conclusion is: If you know what's going on and understand the law you'll support this; if you've stored up a decade of hate for ISIS and Muslims and you want to take it all out on Khadr, then you're an irrational, emotional, dangerous hater. 
Pick your camp, people!