Very good. Let's break that down.
The field content in OC is accessible to the average player.
That field content is used to level jobs in order to enter FT.
The average player lacks the ability to clear FT.
How does one square that? Maybe the field content should be made much more difficult so that we don't have this absurd mismatch?
Or maybe FT should be accessible to the average player? On that basis, it is demonstrably "too difficult."
For a game to survive, it not only needs to provide content for the average player; it also must provide content for the below-average player since they represent 50% of the player base. And yet SE continues to release content that only the top 10% can clear.