I'm not a Jones fan but I have very mixed feelings about this.
Part of me is not shocked, and kind of happy to see Cormier somewhat justified, he is a fantastic role model and I wish we had more people like Cormier, who have overcome insane adversity through hard work.
On the other hand however. Jon Jones is perhaps the most talented Mixed Martial Artist we have ever seen. It was believed by a lot of people he would be eclipsed eventually after dismantling Shogun. He was seen as the first of a new generation, a generation who have trained specifically in MMA for a lifetime. That eclipse has yet to happen, Jones has taken all comers and defeated all of them handidly.
It is so disappointing to see one of the most talented and clever fighters we have ever seen, defeated not by a superior opponent, but himself.