Not sure if I agree it’s meaningless. In most cases it does mean what it implies, even if it doesn’t have regulatory backing.
In the UK we’ve got all sorts of labels like 5 a day, the red tractor to imply it’s of a certain standard and from a domestic farm or even the vegan label. They’re all basically meaningless labels rather than something that’s based on the actual product, but they still tend to track with what they’re saying they are in most cases.
Don’t take everything at face value, but also don’t waste your time worrying that everyone is lying to you barefaced