Someone in this forum said that it's not that other drivers are crashing to much but it's Ogier (and Loeb before him) that is hugely talented that crashes too less. He said that before Loeb world champions crashed everytime but they took titles anyway.
Of course no one of the drivers mentioned earlier should retire from the sport or is someone who doesn't belong to WRC. The result would be Ogier driving alone with one or two young boys that would retire after 3 years if they don't beat him.