I want to say that's roughly a third of what a 100% completed MC's skill list would look like. I haven't even really touched the Fire or Water skill lines, Physical is completely absent, and Ailment is pretty underrepresented. One the other hand, I've nabbed every Earth, Elec, and Magic line I've gotten my grubby hands on.
I'd also like to think this is about where the average player would be like at this level - mastered a few favorite skillsets instead of GOTTA LEARN 'EM ALL.
(oh and you pick and choose which ones to equip so you never, ever have to sift through this much shit in-battle)