Honestly I don't think the level Jump potion is really necessary yet at this point of the games life. I do think the story jump potion might have been worth adding to Stormblood. Getting to 60 isn't usually the hard part for new players. Its getting through the whole MSQ. Also the lvl jump potion really has inadequate support for helping people understand how their job functions. There is no real guide without looking up third parties. I can easily see someone who is new to the game getting overwhelmed by the number of buttons they have and no clear indication how and in which order to use them. Really, if they are going with a lvl jump potion they probably need to have some form of tutorial for newer players.