We should get exp boost in the game.

[Solarra]

Except you're wrong. The story isn't the pull for this game...

Well, that's not strictly true. The story may not be the pull for you but for other people it's the main pull. I came for the story and after WoW, it was refreshing to play a game where the story hadn't been rendered incoherent over time due to huge chunks having been deleted, and where all important events happened in-game, rather than being available only to those players prepared to go to the Blizzard store and buy the books!
I think you have to appreciate that Square do their market research and have hit on a formula that pleases the majority of their customers, but they won't please everyone, because that's impossible. So no, FFXIV does not have to change and would probably shed a huge amount of subs if it did.

The only people who will continue playing are whales and hardcore fans. No new player is going to drop $60 on a game and then another $60 when they find out the game is locked behind a massive story.

The whole FF franchise is based around story. If you bought the game and only just discovered that, I'm amazed. While I agree the jump potions are expensive, that was deliberate and it has the support of the majority of players, on the forum at least (just do a search).
WoW gave one free jump potion to everyone, I used mine and regretted it almost immediately. A boost dumps a whole heap of abilities onto you at once and it's a steep learning curve. Boosted players who don't want to put any effort into learning to play at max level can be a real annoyance to others in instanced content, WoW had numerous complaints after introducing the skip for that reason.

My friends quit because they couldn't jump into dungeons right away.

But the first dungeon is level 15! If you have played an mmo before and you're on a preferred world, that is probably something you could achieve in minutes.
Imagine if the game did allow you into an instance at level one, with no gear and only one button to press it would hardly be an exciting experience.

I'm sorry you aren't enjoying FFXIV but just because you and a handful of friends haven't found it fun doesn't mean there is anything wrong with the game itself. It's just not what you wanted.
You say want to skip to endgame (but only if you can do that for free), but it's quite likely you wouldn't enjoy that either. There is plenty of story at max level too, both MSQ and class/role quests. It's enjoyable for those of us who like the story but for you, I imagine it would be purgatory.