Man, idk why but i'm feeling that you're a nice guy, so i'm gonna explain it to you.
You probably know it, but brazilians HATE to be provoked (idk if i spelled the last word correctly lul). Obviously, it doesn't explain these comments, but what i'm trying to say, is: It's not about the 7x1 itself, they're just triggered because NiP trashtalked us. The 7x1 was really sick (and tbh i expected it, i won $10 betting to Germany because 2014 has the worst brazilian team ever lmao) but we rarely remember it, it's more like a joke for us.
I hope that you understand it.