My guess is they don't want to splat. So they are very methodical in their methods.
The Chinese team here has really young/small women packing all the chutes for the Chinese guys. I can't imagine the penalty for not having a chute open for them.
Here's a video we did of the sky divers. We did see one guy splat. But not because of his chute not opening. These guys will start a free fall maneuver up pretty high to gain alot of speed. +120mph then pull out at the last moment to get a fast speed score 2 feet above the ground. Judge the distant wrong and you get carried away on
a strecher. A few have splatted in the water and they were okay. 1 guy missed the pond, he got carried off the field.