I think what might be a helpful way to pitch Better Humans is more like the Walter Cronkite for personal development.
At least into the 1990s, people tended to regard Walter Cronkite as the guy who would report on things and give it to you straight. He was “just reporting the facts” — without bias. People tended to trust him and his reporting.
That’s more the way I see BH. When I think of Wire Cutter or Consumer Reports, I tend to think (like you said) reviews — as in, all the pieces are breaking down existing products and telling you what their features, benefits, and drawbacks are. But the pieces in Better Humans are original content. They’re not a review of an existing personal development method or product; many of them are themselves personal development methods.
That’s just my two cents.