To be fair, I think they are saying that BECAUSE of all the death, his survival is a miracle. The kid lived when all the cards were obviously stacked against him. The fact that everyone else died proves his chances of survival were incredibly slim. They certainly aren't saying the death of 100+ people is the miracle. They are only talking about his survival. It's always like that, the bigger the tragedy the more it's a 'miracle' that a person survives.
A miracle is just something that defies the laws of nature and some say it's an act of God. I think it's more that we don't know as much about nature as we think we do. No where in the Merriam-Webster definition does it say it's a good or bad thing. It's just something unusual. With that definition, I'll agree it was a miracle. It's not weird that so many people died, it IS weird that one person made it out alive since it was such a deadly crash.
I don't believe in a god or anything like that so I don't agree this was 'miracle from God'. If it were an act of God, that means he has the power to choose who lives or dies. If God is all powerful/all knowing, etc., then this plane crash happened for a reason. That means the other 100+ people died for some reason only God knows. Maybe they were all evil or something. If God knows what's best then why care about this plane crash at all? Apparently God knows what he's doing and it's somehow in our best interest so we shouldn't be upset when people die. For that reason, it shouldn't be exciting when people live either. If we have that kind of God, there's no reason to care about anything that happens since it's all just some act of God and must be good in the long run.
The other option is that God isn't good. God let that kid live for some reason but basically murdered everyone else. If that's the case, it's pretty frightening that people are concentrating on the one person God 'saved' while ignoring the fact that God just killed 100+ people. It then makes it seem like people only worship God out of fear, not because he's good. If I killed millions of people, do you think I'm going to get praise because I didn't kill EVERYONE? No. I'd be ranked as one of the most evil people in history, like Hitler. But, God does it and few people admit that he might have had less than good intent.
Either way, if God was involved with this kid's survival I no longer think there is anything strange or interesting about it. We are told over and over again that God has the power to do this so why should I get all excited every time it happens. If this has nothing to do with God, then it's pretty fascinating/amazing/weird and it makes me wonder how it was possible.