I just pray that B4A won't be a WoD 2.0 (even if it sometimes gives me that impression), because WoW won't survive another Cata/WoD without withstanding some serious damage. I have my hopes up for Warfronts, but it's worrisome how little Blizz has said about them so far.
The problem isn't about relearning specs now, it's how to accomodate an already pruned spec into something even more simple, or "streamlined", like Blizz reps love to say. And the specs ARE incomplete without the artifact weapon... Devs could have at least included another talent row with the artefact spells and a couple of new skills, even if passive; it would have been better than nothing at all. Inb4 Azerite, because we haven't seen almost nothing about it, and what we've seen is dull as dull can be.