I seriously don’t get the confusion here. It’s a simple matter...

I seriously don’t get the confusion here. It’s a simple matter of logic. These people say “you can’t just cherry pick rock chips”. So, what’s the alternative, throw a stone in a field and wherever it lands take a bucketful of dirt and rocks from there? Find what is likely Nb, but then make sure you take a bucketful of dirt from around it? Smaller than a bucketful? Larger than a bucketful? It’s all bloody ridiculous. Of course they’re going to survey the land, find the stuff that looks like what they’re after, get a sample and freakin’ test it. To do anything else is just sheer bloody stupidity.