In the past blizzard never try to know honorbuddy, maybe now YES? Maybe blizzard understood that they are not untouchable.. .and can lost legal fights. Last 15 days blizzard have new employed, NEW engineers and maybe good hackers.
you'd be silly to think blizz didn't reverse engineer every version of HB since it's release. This isn't anything new, and it's very obvious that the detection has been happening for quite some time. This banwave is Blizz's answer to the lost lawsuit. They were probably planning all along to do this if the case didn't go their way. This banwave hurts HB just as bad as it hurts blizzard themselves, as far as lost revenue streams.
its tough to beat a multimillion dollar business in a lawsuit. even if you win, they still drain all your resources.
Even after this could be definitely accurate, it is unlikely, because Blizzard still have plenty of cases vs Bossland left. And in general this is very optimistic and romantic approach about Blizzard, having detected something and not actioned till their next hearing on the German court.