I agree with you here too but, I don't think your "sticking up for the battling jockeys" is the same as running down the jockeys who are perceived to be better and actually do get on the better mounts.
If you watch a "better" rider on a slow horse they look as bad, and sometimes worse, than the "out of favour" jockey. I certainly think Chris Johnson is gifted, I have employed him myself and wondered how he got the best out of some of them. In fact, I didn't know some could run that fast, as they didn't for anyone else. Likewise, Damien Oliver as an example, could extract an enormous amount out of some horses.
The question Chief poses of would you put Opie on? He too is a gifted rider, in a different way to Chris or Damien in my opinion, but there is always a chance you will get to the races and he will be overweight or dehydrated and not fulfill the engagement. I'm not saying Opie specifically but, I have also employed the top or near the top premiership riders and some of those could not care less as it was an undercard ride booked by their agent, and rode my horse like it had no chance, until the race was nearly over.
Sometimes the hungry jockey is the one who will put your horse in the race and ride it like the horse, trainer and owner matter.