I'm talking about in gameplay.
You're making an assumption. Technology can allow missiles to be very small, yet pack a huge punch. Technology can allow a mech suit to carry an entire arsenal without the pilot having to worry about weight or fatigue. Further, Goblins have already shown that they can create miniature factories, so its not impossible for a Goblin to simply toss down a pocket factory that manufactures weaponry.Scale. Hunter's gadgets are much smaller, much simpler, and much more low-tech, therefore easier to manufacture, than what a tech class would use.
In that situation, walking around in a fully armed mech suit is better than lugging around thousands of traps, arrows, grenades and other low tech projectiles.
Discovery is not invention. Please get your facts straight.It is irrelevant because your first claim was that engineers do not invent, and when proven wrong, you moved the goal posts by saying 'not until level 90 and for just a few items'.
Not necessarily. Some would argue that DHs being limited to just elves enhances the gameplay of the class because Blizzard could add more features that are more elven-specific, and wouldn't be diluted by a class that is spread over multiple races. The same can be said for limited a technology class to just Goblins and Gnomes. Some would argue that having set factions enhances gameplay. There are arguments for both sides. Expanding a class to all races or eliminating the racial restriction on a faction isn't a guarantee that it would improve gameplay.Proven wrong again. Otherwise DHs would be open for all races. All classes would be open for all races. Any race could be of any faction. Yet that isn't the case.