This is in large part my being dense, But it took me far to long to realize how level is of a adventurer is shown, It made me think of say borderlands tech tree and I though it was like every 5 levels they get to the next tier of skills. For quite a while I though the 3/3 skills assigned was there are level 3 out of three, and doing personal goals ups the cap. I did keep looking at the giant level indicators and thinking, are those the level indicator, but just couldn't convince myself that was correct. Thoughts like, its to much space to have dedicated to that, or its just tech tree tiers, or that no way is max level so low. Eventually convincing myself that the class names of novice adept and what not were the level indicators.
A simple fix for this would have been if hovering over not yet unlocked skills said "level _ required"