My problem is the starting resource holocron is crap and does not make sense story wise at all. If a holocron is a the thing getting you on the path of force use it needs to ooh I don't know do something to get you on the path of force use. Not give you new career skills. Which it does not. It does not operate like a holocron at all in any way we have ever seen in any fluff and does not make sense. Also it is a sh*tty option compared to mentor. as in not anywhere near as useful as a mentor. A holocron needs to do something related to teaching a starting character force using skills. Holocrons and Mentors really should do about the same thing. Holocrons being less useful in some ways and more useful in others.
And not all holocrons in the fluff focus on the same things. In fact, the only canon source of a holocron is the one in Clone Wars, and all that was was a database of force-sensitive children across the galaxy.