Ishgard Restoration:
Is incomplete content. Its being released in stages.
Fine by me. I play all year round and it doesn't bother me that content is paced. I will get to play it anyways. They should just put a bit more side content in X.1 patches.

Hrothgar and Viera:
Are literally incomplete races. Not only do they not have their opposing gender counterparts, but they also lack hairstyles that are 100% availabe to all other races, including ones purchased on the mogstation. They also do not have full access to head gear.
If the other option is not having beast races, I'll take beast races as they are. Hrothgar looks great and I can change the fur without using a fantasia.

Gunbreaker and Dancer:
Are literally incomplete jobs. They do not have access to glamour items, available to 100% of existing jobs. These jobs also were not released at level 1, so you cannot even level them
I'd like some weapon glamours but that is not what determines if a job is finished or not. Leveling is playing a job in an unfinished state without all the skills so that is also a silly point. You can do all content, they are full jobs.

New Game+
New game plus has been slowly released over time. Instead of holding new game+ and focusing on A Realm Reborn revamp first, then releasing new game+ afterwards, they completely have done this backwards.
Agreed. I've been waiting to try this feature but I'm not going to play the story from the end to the beginning.

Blue Mage.
Do I even need to comment here?
No need, it's trash.

Unreal Fights.
Unreal fights are limited time, and... well the word limited means limited. They are also level synced.
They are seasonal PvE content. While I'm not a fan of time exclusive rewards, at least the bosses themselves are recycled and the original versions can be done synced at any time.

Relic Quests.
If we're comparing 5.0 relics to any previous relic, they keep pushing the relic further and further back into the expansion.
Same as with the Ishgard restoration, content with multiple stages should be released much earlier so that people have something to do during the whole expansion and not just the latter half.