Artificer sounds correct according to this.
"You discovered your class... now about your race? Your first step: Go to the storm."
Sorta how brewmasters were in Warcraft 3 but became monks with a brewmaster specialization in WoW. This seems to indicate we'll get an artificer class (very D&D) which can potentially have a tinker specialization (maybe as the tank).
I'll give it this. The binary makes sense when you're claiming there's an artificer class. Like the gnome tablets that had to be translated.