Warhound is in the base swarm mod. It was a unit appearing in campaign and beta.
The multi dependency that holds the multiplayer balance changes removes it from multiplayer.
Blizzard didn't tidy up that aspect before the release because it's not really required. Maybe they weren't sure if they won't have to patch the warhound back into multiplayer again, didn't want to spend time to do something that doesn't really effect anyone or they kept it because they knew they wanted to use the model for aprils fools.
Warhound is in the base swarm mod. It was a unit appearing in campaign and beta.
The multi dependency that holds the multiplayer balance changes removes it from multiplayer.
Blizzard didn't tidy up that aspect before the release because it's not really required. Maybe they weren't sure if they won't have to patch the warhound back into multiplayer again, didn't want to spend time to do something that doesn't really effect anyone or they kept it because they knew they wanted to use the model for aprils fools.