I wouldn't have posted it if I thought the only point was ghoulishness, or exploitation. I thought it made the point of how terrible it was for the people living there. Maybe that's what the guy was thinking when he posted it as well.
I'd like to think so. That would be the charitable approach, anyway. I've just run into too many self-absorbed types who post way too much for more selfish reasons (the "hey look at me" factor), which always makes me give something like this the side-eye.
That and I have a thing about the dead - you respect their space. I get overtly annoyed when news crews insist on filming people hurt in accidents being loaded onto ambulances, or are laying on the sidewalk in a pool of blood (etc.), or their loved ones are recorded being hysterical due to any of the aforementioned. Or when they basically gate-crash funerals. It's just never appropriate to be broadcasting all that. Seeing someone's remains over the internet is an invasion of that person's privacy. Even if there's literally only cinders left. Just the same as not walking on graves in a cemetery, but going around. Probably just a cultural thing.
I only watched a few minutes before I saw the direction he was taking it, and listened to a bit more of the audio while doing other things. That audio seemed to indicate how upset he was. He was commenting on trying to get a woman to leave, but she insisted on delaying to "put on her makeup" and ended up a crispy kritter. Having been uncomfortably close to more than one wildfire, I cannot imagine anyone being so incredibly stupid as to think that makeup was a priority... the roar of the flames [should] put that out of one's thoughts immediately.
So, yeah, hopefully he was posting to get people to take this all seriously.