Puffer, the point isn’t that she is a SJ and thus bad, it’s that she rides XC like she is doing SJ and you CAN’T do that, it’s fundamentally different.
And honestly, the fact that you think MJ is a “false god” is quite laughable. You would be hard pressed to find many riders that can ride better than he can.
To add on the Jealoushe’s list of wins, he is also one of the very few (two?) to have won the Grand Slam.
ETA: as far as “sitting back in the saddle slipping the reins”, yes, you don’t see that much in SJ. You DO see that in XC because a horse has to be a bit more balanced and able to save itself than it does in SJ sometimes you have to give it its head and let it figure it out without getting in the way. If you try to jump up the horse’s neck in XC or keep a tight hold of its head, you are gonna have a bad time. Better to be a bit defensive. Again, the fundamental differences between XC and SJ. I feel like you’ve never actually ridden XC, I’ve only done the very lowest levels and I can tell you that you don’t ride it the same.