Yep! In fact, a few years ago Blizzard tried to sunset the Battle.net brand and rename the launcher to just Blizzard Launcher or something, and they eventually

Yep! In fact, a few years ago Blizzard tried to sunset the Battle.net brand and rename the launcher to just Blizzard Launcher or something, and they eventually gave up on that because the community was really attached to the Battle.net name. For many gamers Battle.net was one of the first online experiences.