I am just reading the observations of pax on board who said "they had trouble breathing as the air circulation was off and were left in the dark.".
Sorry, but a runway excursion incident is a uncontrolled crash into the dirt off the runway. What else could it be described as? As you were not there (presumably) why be so unconcerned about it? The authorities won't be, latest news is they have summoned the pilot to explain himself.