It's easy to point fingers at players for abusing a system that they think may or may not be working as intended. It's absolutely insane that Blizzard didn't respond and hasn't responded. Days before the bans came in, people were bombarding Blizzard with tweets telling them of the bug, and if they were allowed to do it or not. They were met with complete silence as they watched streamers for hours, and hours use this exact same bug and Blizzard still chose to be silent on the matter. It seems as though the team is preferring inaction rather than action. I believe most of the bans could've been avoided if the team was more communicative.
Edit: I want to clarify my stance because a lot of people are misinterpreting my stance. The people deserved bans. In fact I think it's pretty fucking stupid that the characters aren't getting rolled back. The entire point of this thread wasn't to discuss whether or not exploiting is bad or not, but rather why I feel as though Blizzard failed to communicate on their end. Also people assume that because I made this thread or have this stance that I did the exploit, I did not.