Hi, not shure if this has been noted already
The Warloc Subclasses have nothing to do with the actual subclasses for Warlocs and are an extremely poor replacement.
The Usual Subclasses let you focus on Casting, Pets or a mix of Meele and casting (kinda like a charisma based Eldritch Knight)
The Current Subclasses are something that every kind of Warloc gets to choose from in DnD, this makes the Warloc feel realy disappointing