That one user is a bit dramatic and unhinged...but to have a counterpoint to the OP, some people just aren't animal people. And that's ok (unless you want to murder it for no reason...that's another issue). They probably make up a larger portion of people than you'd think. This sort of stuff won't work on them.

I would probably put myself in the non animal lover camp. I just don't like most animals... especially dogs that jump all over you or bark incessantly . Part of that is a training issue, but another part of it is just their nature. My brother has a large dog. She is sweet and they have her trained well...but you can tell she is exercising extreme restraint against her nature to not pummel into you with excitement. On occasion, she doesn't listen.

There are a few pets that I have adored and loved, but they are more the exception rather than the rule. And that's ok.

Anyway, the TL;DR of this is, like anything, this isn't a one size fits all. It won't be applicable to a larger population of people than you think. I feel the same way about people touting that exercise cures everyone of mental health issues. Some? Sure. Anywhere remotely close to all? No.