Obviously Blizzard is the target. Well, no, not really. Blizzard's customers are the target.
These human #2s are targeting you and by blaming Blizzard you are are just ... not getting it right. The fact that you think there is some magical anti-DDoS fairy named "BLIZZ" that can protect you perhaps relates to why you are playing a game where 2.5 foot tall yard statues kill dragons by shooting fire from their fingertips.