There's a particular, subtle phrase hidden very deep in literally the first sentence of the comment you're responding to that I think kinda refutes your entire tangent: "if a dog isn't bothered by it..."
This would assume that as the dog owner you already know your dog is not going to be stressed by fireworks and/or groups of people. If we were talking about a dog which hadn't yet ever seen/heard/experienced fireworks then I'd agree that your described scenario is a possible outcome, but that would contradict literally the first 7 words of the comment you're responding to