Don’t have a problem with a court hearing this. Many people now, though, don’t understand the term “accident” though and feel that there must be liability for every instance of loss. That isn’t the case.
Many people think that doing something “accidentally” means it didn’t happen, nobody got hurt, nobody should be morally or legally responsible. That’s not how life is.
And of course the owners could have done many things to control their dog, had they chosen.