As far as new players go, I don't think jump potions are necessary. However, I do think that at the bare minimum, the 2.0 content (basically everything between the Praetorium and the start of Heavensward) needs a desperate trimming.
A lot of the patch quests consisted of handing out T-shirts or mindless running around to pad out the patch content. Pointless faffing-about is sort of a staple in JRPGs, and a lot of the courier quests need to be destroyed and just given way to, "Hey, you're the Warrior of Light so we delegated someone to do the courier things for you".
For alts, I think jump potions are fine as long as you have one character at level 60. Context is a pretty important aspect of the story and setting though, important enough that I don't think new players should skip it.
A lot of the patch quests consisted of handing out T-shirts or mindless running around to pad out the patch content. Pointless faffing-about is sort of a staple in JRPGs, and a lot of the courier quests need to be destroyed and just given way to, "Hey, you're the Warrior of Light so we delegated someone to do the courier things for you".
For alts, I think jump potions are fine as long as you have one character at level 60. Context is a pretty important aspect of the story and setting though, important enough that I don't think new players should skip it.