My main issue is that long-term grind content (relics, deep dungeons, and the like) should be introduced sooner. I understand that they don't want them at launch because they don't want people to feel pressured to rush through the story to get to it, but x.1 or x.15 at the latest should be more than enough time. Things that keep more people subscribed and engaged, over things like Ultimates that only a small fraction of the player base will attempt.