IMHO, you’re all correct.
Some Humane Societies are good; some are bad. A lot depends on where you live and who runs it.
This article isn't talking about local shelters that are primarily concerned with animal welfare, it refers to the Humane Society of the United States, an animal rights lobbying group whose policies include outlawing hunting, pushing the US toward veganism, doing away with recreational uses of animals, including circus acts, horseback riding/racing, rodeo, etc.