This has already been addressed.
The problem with this thread is that those who oppose the implementation of an "ability sync" system borrow the same rhetorical strategies as flat-earthers.
Not only have we already been here before with Red Mage and it's implementation into XIV's current system, but even if all the questions of How? Who? What? Where? When? Why? were directly answered they'll just keep saying, "It's impossible".
If you show them how it is indeed possible, they just counter with "that's stupid".
If you show them how it's not stupid and it's actually a fairly common sense implementation they now suddenly become software engineers and veteran programmers that have direct access to SE's source code and they'll tell you, "with how the system is built, it's impossible."
If you counter with that's what we're asking, is to change the system, they now suddenly have become SE accountants and they'll counter with, "development resources would be better spent on [such and such]."
When you show them that SE themselves doesn't even honor that as an excuse within their own company when it comes to implementing systems but that each team that works on a particular aspect of the game doesn't actually effect the output of the other teams that work on other aspects of the game, they counter with, "you're just an elitist that wants to show off."
When you show them that you're not even in current endgame content, that you're actually wanting these changes to help incentivize new players, and that it's them that have this elitist attitude, they'll just counter with, "you're not even a true fan of this game. If you hate the game so much go play WoW."
When you show them how much you love the game, and how you've been a fan since you've heard the announcement of the game at E3 back in 09, they'll just counter with, "you liked the abomination that was 1.0? Dear god your taste is horrible, thank god we aren't listening to you."
When you tell them that there were aspects of 1.0 that you didn't like but that you still loved that SE did what was necessary to fix the game to fit the players expectations they just counter with, "if we implemented everything the players wanted we'd have butt sliders, ability sync, blue mages, more tanks, boss fights not in a circle, raids that aren't just boss fights but entire dungeons, mutually confirmed dueling in non PvP areas, the ability to change the order in which your linkshells are displayed, and a phone app that allows you to actually talk with your FC." they'll just counter with "no one has that."
When you show them examples of other games that have indeed "done that" they counter with, "its not worth development resources."
When you show them how it's actually easier than what they are decrying and that there is an entire mod community that is getting the things done on their own free time without pay and that it really isn't a viable excuse, they'll just keep doing what they do best. Putting their heads up their... *ahem* excuse me in the sand.