Title. Engineering has never had the same mainstream crafting or commerce functionality as any of the other primary professions. Engineering’s strengths have always lied in its utility items, gadgets, and gameplay aids. With DF they tried to make engineering relevant in the new profession system by adding crafted braces, but the profession still couldn’t compete in the market. If Blizzard is never going to make Engineering truly Primary, then just make it an official Secondary profession so everyone can use it on all of their characters as a utility profession alongside cooking, fishing, & archaeology.
Engineering’s perks lies in such tools as wormhole generators, unique gadgets, mounts, & transmogs. It’s relevance to primary gameplay isn’t any more sophisticated than archaeology or the other secondaries. So just call it what it always has been, a secondary profession. Let’s stop gating people from having the functionality of two real primary crafting or gathering professions by removing the choice between full crafting competence or convenience tools/utility.
Make engineering secondary.