Outside of some contrived scenarios, the shooting of the dogs was wrong on some level. The issue is there are different levels of wrong and they can reflect differently on the hunter. For example, I think there is some differences between; an "oh, crap what did we kill a dog" accident from accidentally shooting the wrong thing, killing a "pest" animal out of frustration, or trying to kill anything on four legs because they don't care what dies. All of those possibilities should require consequences (assuming an appropriate amount of evidence), but I don't think every single one of them would mean the hunters are some dog hating monsters.
Outside of some contrived scenarios, the shooting of the dogs was wrong on some level. The issue is there are different levels of wrong and they can reflect differently on the hunter. For example, I think there is some differences between; an "oh, crap what did we kill a dog" accident from accidentally shooting the wrong thing, killing a "pest" animal out of frustration, or trying to kill anything on four legs because they don't care what dies. All of those possibilities should require consequences (assuming an appropriate amount of evidence), but I don't think every single one of them would mean the hunters are some dog hating monsters.