I'd guess most of the non-US voters didn't know what BLM is - and for that matter, those that don't live or haven't lived in the western part of the country may not know. But for those of us who HAVE lived in the west, this is a pretty good pictoral description. I do like the creative things people came up with, though! And I'll agree that maybe something providing foreground interest would perk this up a bit. But as for descibing the acronym, it works as is!
I think I would have voted a little higher with something a little more interesting in the foreground (other than fence posts). I love the blue sky contrasting with the warm tones of the rock and pasture.