Odds of being thrown into the air by the blast and surviving are zero.
Winds going > 100 mph can knock you over and winds going minimally more than that whilst you are simultaneously hit with something in your legs can make you feel thrown. Such wind speed is likely not going to kill you. The greater the wind speed, the more likely an individual can be killed (but not necessarily) and the more likely they will have been thrown or feel like they have been thrown. The CDC has
some specific numbers on this. None of these numbers say there is a 100% death rate at levels that can knock over someone or throw them in combination with something hitting their legs. Now besides all that, consider what we know from wind speeds of other types of things such as hurricanes and tornadoes, just as an example. One young man was picked up by a tornado and carried some
1300 feet and survived. This case of a Palestinian man surviving is about two orders of magnitude less dramatic. I mean, he could have been thrown (or knocked over) 10 feet, not over 1000 feet. Two orders of magnitude less.
I don't know what kinds of life experiences you and Loren have, but I'm living in the east coast US and have experienced many hurricanes. I've gone outside and nearly felt like I was being picked up at wind speed 75 mph. My apartment got evacuated back in '92 due to hurricane flooding. People survive hurricanes all the time with wind speeds above 100 mph. Now if you look at, say,
wind tunnels, you can see it only takes wind speed of 80 mph to 180 mph to keep someone lifted up, never mind merely to throw them when they are off balance. And this depends on the person, their weight, shape, etc, probably. When you review the CDC numbers at the upper part of that range like 163 mph, it says "fatalities are widespread," not fatalities are definite. And at the lower end like 102 mph, it says "fatalities may occur."
Additionally, the victim of the explosion only needs to be far enough away (or at some other position) so the wind (and/or pressure) has
dissipated:
As the shock wave expands, pressures decrease rapidly (with the cube of the distance) because of geometric divergence and the dissipation of energy in heating the air. Pressures also decay rapidly over time (i.e., exponentially) and have a very brief span of existence, measured typically in thousandths of a second, or milliseconds . An explosion can be visualized as a “bubble” of highly compressed air that expands until reaching equilibrium with the surrounding air.
Being right next to the explosion (i.e. like say a foot away) isn't going to allow a victim to be alive provided they are in the path of the explosion, but being further away increases likelihood of survival. Within the range of surviving wind speeds, there is a sweet spot that can be inferred from above and CDC tables where speed is fast enough to hold a person up but doesn't necessarily kill them.
Finally, I will add that the guy had said he was hit in the legs. This is pretty vague and we do not know what that means or how that could have impacted him through collision and conservation of momentum or how that could have been a factor in combination with wind speed in knocking him over into the wind.
But nothing he claimed was outrageous.