OK. I'm going to address all 3 parts from MY point of view:
He can stomp grabbed double flats. He can also grab 14s. He has pretty good control in the air. He didn't even huck that hard too. If he didn't go for the grab and had just tucked up he would have landed it. He didn't almost hit his head on the jump like most people who huck.
He did have some chance of landing it. And it wasn't just for attention. He stomps all of his dub flats with grabs. He can control them very well, and stomps them all the time. He could of landed it if he didn't go for the grab.
I wasn't trying to rip on Russ. My point there was that Russ had a high chance of getting hurt too. Traveling 20 feet high and 90 feet far well spinning around 4.5 times and flipping 3 times presents a huge chance of injury. Maybe not as much as Johannes, but he still could have easily gotten hurt. He has more control than Johannes, but he still could have easily gotten destroyed.
One last thing, I don't think anyone is giving Johannes enough credit as a skier. I mean, he is a solid skier. He grabs his dub flats and stomps them. Grabs his kangs and stomps them. Grabs SW 10s, and 14s. He has grabbed 10s since he was 12. He is a solid skier.