As alpha seems imminent, let's remember that every feature of Azerite Armor was designed as a direct response to community criticism of Artifact Weapons, and it was shit. Feedback and suggestions are valuable and awesome; trying to design their game for them, not so much.
Alls I know is, when you have a "locked in slot piece", meaning one piece of gear that is essential to leveling, all gameplay, & especially the endgame (i.e. the Heart of Azeroth necklace) - all other necklaces should be removed from the loot tables, because they are worthless :D