Look show me this magical MMO that I login at level 1 and I am like Jesus H Christ best mmo created because I have played most of them since 2005 and have yet to see it. My point is before I go on an MMO's forums and start making broad statements I like to get the full experience. I felt qualified to say "Aion leveling is HORRIBLE" after playing Aion 1.0 and grinding for 8 hours a day to get like 3 levels.
I felt qualified to say pruned classes in WoW felt like shit after playing lvl 80 ret Paladin in raids and having gaps in my rotation because RNGJesus did not bless me with procs and watching my name fall off the dps meters because of it.
If FF14 changed the 2.5GCD to make the 1-50 experience "feel better" then it would have insane consequences for 50-80 level range. Could they move level 50-80 abilities lower into the range so that they are obtained quicker!?!? Yeah maybe?!?!
What people do not seem to understand about FF14 and it is because the development team is Japanese and the English speaking parts of the community are taken for granted is the game does not out date its content. Changing 1-50 abilities has HUGE consequences for people who still farm old raids and who run Palace of the dead to this very day for the rarest title in this MMO.
Main issue I see with FF14 is the community is so trained to be nice all the time that they have stopped trying to defend the game or explain anything for fear of being accused of harassment because that is a policy heavily enforced by Square. So many post I can just shoot massive holes in them because it is clear people never gave the game an honest try or noone even bothered to explain WHY SOMETHING IS DIFFERENT.
If you approach FF14 like you approach WoW then you are going to be confused and incredibly pissed off constantly because FF14 the 1-79 content is still played actively by the people at 80 which is seriously not the case for WoW.