This guy has fans, and he has people who really don't like him. Its definitely true.
It would be nice that at this point, everyone give the guy a real rest.
People are assuming he messed with this animal in some way. Well, got news for you....touch tanks with stingrays are very very very common at aquaria. And "swimming" with stingrays is very common. Fatal hits are very rare. People "mess" with stingrays all the time and don't die. Go look at any special on marine life and you will probably see some image of a ray swimming along, in a scene very much like it sounds like they were shooting. Very common view. Very uncommon end.
He wasn't hit on the legs because he wasn't walking. He was swimming, which means you are in a horizontal position, which means that you are no more likely to be hit in the legs than in the chest. It doesn't by definition mean he was messing with it.
Heck, for those who don't like him, he could have been killed in a car accident in the outback and people would be blaming him for taking risk in some way because he was out filming something. He could have died from an allergic reaction to an animal and would have been blamed for something by someone. He could have been shot by someone and people would find a way to blame him.
Yeah, holding his kid in there? Stupid. I agree. I've done stupid things too. I've been too comfortable around some animals and got away with it. People get too comfortable walking on their roof cleaning the gutters or putting up Christmas lights, and get away with it. But every so often there is a tragedy. To each their own.
But it didn't cause him to die. He didn't deserve to die. But it may have been his time in the end. And if it was, he could have been watching the TV....
I hope he just has peace knowing he made a difference. I really believe he did.