How does being outspoken speak to being affiliated with organized religion, if anything its the opposite. And actually he doesnt seem exceptionally articulate, it actually seems like he has trouble talking in some of the interviews everything you said is like the opposite of what a person would think lol how does someone who has father issues also is bold?
Organised religions each have prophets who are revered as visionaries but were viewed with suspicion in their own time. To those given to superstition, which religion requires, Niemann is viewed as a chess visionary. To his disciples, the rest of us just don't "see" it.
As for father issues, I am not reaching here. People with poor father figures often look for replacements. I am not a bodybuilder but I have studied the subculture. The outpouring of grief following Rich Piana's death from supposedly "alpha" men admitting to crying and literally describing him as a father figure told me a lot about human psychology.
It's fascinating how, whenever someone like this comes along across a range of fields, there will be a fringe of highly motivated admirers defending their every word and action. The only other sport I follow is boxing, and I have seen this with Tyson Fury most lately. There are people who "interpret" his numerous public pronouncements for the rest of us and explain what he "really" means when he says he's retired repeatedly (for example).
For what it's worth, I think Niemann is entertaining and unusually articulate for his age - I see the appeal. But the rational part of me knows he's just a human being who talks in front of a camera. But to those most given to magical thinking, and perhaps with issues with their own father, they interpret outspoken/bold as heroic. It speaks to that irrational part of the human brain which has allowed organised religion to endure far beyond when it should have in the modern scientific age.