Perhaps they renamed the Blizzard launcher to re-purpose the Battle.net brand for other Activision gameslike Destiny
I've seen people say this before but I don't see what possible connection you guys are making here. I mean if Activision were to use that launcher for their other non-Blizzard games, why would they change the name to "Blizzard". Battle.net is a much more neutral name in comparison despite the history associated with it and it certainly won't be any worse than the history associated with the name Blizzard.