In response only to the OP, I'd like to reply in favor of unlocking select parts of Ishgard content on the basis of accessibility. Ishgard (the dungeon content behind the gates, unlocking flight and pursuing the main story quest) could all remain locked behind Ishgard's gates as exclusive content worth striving for.

But to keep the post-50 quests for every type of job including gathering and crafting behind the gates seems excessive for a new ex-pac that people paid for. I could understand locking everything if this was a patch that was free, but not behind an ex-pac that was to be purchased. You don't pay for something that you then have to go earn another way. That's what the money was for.

The new jobs that began at level 30 could have been unlocked in the Coerthas Central Highlands (MCH, DRK, AST). New battle class, crafting and gathering quests post-50 could have been given in the Central Highlands even though specific treasures such as those found through collectibles could have remained gated behind Ishgard content.

There were plenty of excellent examples of gated content in FFXI that did not deny players a basic platform of accessibility. I feel that anyone should be allowed to level any class/job to 60 if the world expands. In addition to this, several of us paid for the expansion but play on alts as well. Unlocking story once should be enough for people with alts; there can be challenging side-quests to help with further access much like when a player farmed for items to get into Aht Urhgan, or had to run the Maw Maze for Wings of the Goddess in FFXI. There are many ways to gate exclusive content while still providing basic accessibility of the core functions of the game.

A strong MMO is a generous MMO and could never appear weak for providing some basic accessibility to everyone. Please consider this.