Problem is he marginalized every advantage a hunter seeks with that shot:
-Shot placement: There's no way he'd tell you in honesty that shot was going in the vitals and nowhere else, and he didn't make it, he spined it.
-Caliber: Whatever caliber he was shooting, by 1100 yards it's beyond marginal for moose.
Given the size of a moose, he likely hit a couple feet from what 95% seek in shot placement, giving him say a four foot radius of possible shot placement on pulling the trigger, two feet either side the vitals.
I know both you and I extoll the virtues of using enough gun, and shot placement, in other threads and this guy took advantage of neither of those factors, by choice. He also failed in the eyes of everyone but a sustenance hunter who only cares if an animal goes down and not how. We don't need to blindly avoid speaking ill of other hunters in a whipped vote type motion, when something stinks it's alright to point it out. This guy took a shot he couldn't tell you he'd make, spined an animal more than a kilometer away, and posted it online as a triumph. That's bound to attract criticism as poor decision making, and reasonably so.