Hm. I've seen her paperwork mentioned a few times, maybe they've stopped writing it because they think everyone knows now. I remember getting so annoyed at "DNA, the building blocks of life" but it really was new information to a lot of people. Honestly, the paperwork issue is what terrifies me. I had that same "paperwork" style issue maybe 20 years ago, and I'm so glad they just denied me entry.
I haven't had any recent interactions, but if your family is white US citizens, I doubt there will be a problem. If they are pending on any immigration status, I would suggest they contact a lawyer before crossing the border.
FedEx forged my signature. Very lucky that I got my shit, but the company paid extra for me to sign, FedEx called and verified I’d have to be home, they didn’t show up the right day, and the next day randomly showed up and left the item after “I” signed. It wasn’t even someone else in the house that signed. Just a blatantly forged sig by the delivery man.