A lot of highly experienced jumpers are also dying, probably due to a mix of complacency, envelope-pushing and the inherent lack of margin for error in terrain flight. This point is made in the latter part of the article:
> Figuring out why the best are dying confounds, saddens, and even irritates just about everyone I’ve spoken to in the wingsuit BASE world. “It’s really puzzling to me,” says Rich Webb. “I wish I knew, but I think it has to do with complacency.”
> Webb points out that many of the best are dying on flight lines that might be considered either “easy” for them, or they’re lines that they’ve done before. “It comes down to the fact that they're so comfortable in a stupidly high-risk environment,” says Webb. “We just don't have the luxury of margins in our sport, so at some point it catches up to you if you're not on it all the time.”
> Andy Lewis speculates, “I would say so many experienced wingsuiters are dying because they are trying to execute jumps with very low margin for error. Eventually when you make a mistake you hope you have room. And now low margins are so standard in the sport. It just kills people.”