I have to play devil's advocate here and say that I think it's a good thing. My firewall agrees with their statement that it doesn't transmit any data, basically it seems to be a pre-emptive warning that scans for Blizzard's list of bad programs and tells you before you go in, that way anyone can avoid a ban and has no reason not to. Their publicization of their protection processes is something they should've done from the start in my opinion. This is long overdue.
I'm also happy that my beloved Nostromo's drivers didn't come into question. *Cheer!*