Some of the best coaching I did 10+ years ago was when I challenged an athlete who didn't want to be challenged at a particular moment, or held an athlete accountable when they wanted to be let off the hook. When I meet up with former athletes, that's often what they remember and appreciate and want to talk about.
But those days are gone. I'm all supportive all the time now, even when I suspect I'm doing the athlete a disservice. That's what the athletes, parents, and administrators all want. It's not the end of the world, and there are upsides to this coaching model. But it's foolish to imagine that nothing has been lost. And it's also foolish to assume that a "non-supportive" coach is the cause of a given athlete's mental health struggles.