Both of those links were good. I read a couple of other posts by John O'Sullivan after that. It confirms a lot of what I felt when I first navigated youth sports as a parent, but was too naive and trusting of the system and coaches to listen to my own gut. As I read these things, it makes me realize that while the sub-par coaches who take advantage of the current youth landscape are part of the problem, the bigger issue is the parental culture which feeds it and allows it to flourish. If I had to go through it all again, I would do things much differently as would many of the parents whose kids went through when mine did. It's like a lot of aspects of parenting unfortunately; by the time you know what you're doing, your kids have already grown and flown the nest.
And to answer the OP's question, yes, these coaches do exist. Unfortunately, the environment of club soccer and youth sports in general doesn't really reward them enough to make it a lucrative place to stay around.