His point is 100% right, but his argument is inappropriate for wide distribution. He's not sharing the results of a scientific study, he's not sharing a personal growthful experience, he's stating his perspective and inviting others to agree with him.

It's persuasive but that's because I already agree with him. I'd like to see it backed with real data so it could be persuasive to all. Then it would be more of an "idea worth spreading" rather than "a really good idea".