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As someone who already has burn out for the game and just wants to take the relic approach rather slowly, this is why it bothers me. It's most efficent to spam Alexander run, but I honestly can't be bothered enough to do my relic that fast, so I'd rather take the slow approach (which means going back to the old content). Doubly so when they kept delaying this content because it wasn't ready or whatever, it does not reflect 5+ months of extra developmental time. Of course I could opt out on doing beast tribe and the level 50 roulette for poetics, but it'll essentially double the time investment needed to get done, at that point I'll probably unsub from the game before then.
Funny enough, I bought the WoD expansion and 30 days of game time for me and my friend just to take a break from this game, and at least get our characters to 100 for the new expansion (which has my attention).
In a nutshell, WoD (the current expansion) is mirroring a lot of the issues that 3.x is going on with right now. The entire expansion as a whole feels like it didn't change or evovle your character with the (imo excessive) ability pruning, some feels like they've lost something or feel oversimplified), so you were essentially playing the same character as you did in MoP. There's a lack of new dungeons, and on release the end game really wasn't all that there. There was also ultimately content that was cut off to meet deadlines, features that were cut off for reasons (such as flying), and the new features are ok at best, but becomes a mess when it's integral to progression (Garrisons). Of course the developers giving condensending answers to the players rather than admitting their mistakes ("We cut XYZ because story reasons that you don't understand (and this doesn't even make sense lore-wise, mind you), versus "we scrapped it because we ran out of time")
If I had to vouch one thing that 3.0 did well (that isn't story and OST, because I feel that this is a given for a FF title), is how some of the jobs evolve compared to their 2.0 counterparts. NIN and BRD though imo fail spectactularly at this regard, and even MCH feels shafted in what they initially had visioned versus what we actually got. But even that only lasts for so long because it's going to be there for the entirity of 3.0 (excluding major job balancing like they did with DRG and WAR), and the current circumstances of the content we have now.