That’s correct. Wolves have a natural killer instinct with stamina and a powerful bite. So powerful few dogs can challenge it. Just for the sake of this topic I investigated on the subject ‘wolves against dogs’. Most people on specialised forums state that wolves are stronger than dogs. The only chance for the dogs is their numbers, training, protective collars and help of the owner. I was surprised reading a single Karakachan can take on 4-5 wolves. Maybe wolves were a little scared on foreign territory and ran away? Otherwise, no chance knowing how efficiently the packs kill their preys. Dare I say there is no dog that can take on two decent wolves.
And the video shows a wolf around 12 months of age as per comments in the video. Not the strongest wolf. By far not an alpha male.