Abyssea and level-cap raises pretty much destroyed the legacy of the good old days of camping the kings for years on end in the hopes of seeing a Defending Ring let alone acquiring one. I feel S-E have learned a great deal since those days even if they acknowledge they went too far with easy-mode Abyssea.
Did they though? NIN was their little baby. Devs pretty much giggled at sweet PLD tears as soon as evade tanking went in place, and all the way through Einherjar and beyond through Pandemonium Warden, SEA and Abyssea. They make their mistakes (though different ones granted) as any other dev team. I agree that Abyssea went way too far to the land of Milk and Honey from the nail in the balls needing 3 guilds to camp Old gods stuff of FFXI.
I know folks that waited *years* and had to have several guilds' help to get one freaking BP. Let's not even discuss Relic weapons for the classes they were good for (BRD, PLD, ETC) and they were so difficult to get requiring months if not years of farming and currency (both token and gil), and then to add insult to injury certain classes they were just vanity weapons for. They were like EQ1 epics but way way way worse. At least the water sprinkler was useful.
I enjoyed my poopsock time in FFXI cause I was in one of the better FFXI end game guilds including asians that could speak chinese, japanese and a few other languages, and we were able to ally ourselves and with some JP guilds, and get access to all that content and even swap spawns on Old gods.
Regarding all the worries, I keep telling folks - you are right it won't take long to get 50, (or a few 50s). There is definite concern, that there won't be enough endgame content.
That's how come some of these legacy players have them. It's not cause all of them are insane. At least the ones in my guild or the ones I know, played the exact same MMOs the rest of us did, Rift, SWTOR, Tera, GW2, just in between they may have gone back to FFXIV to see how things are and gotten caught up in killing primals for a few months, it wasn't hard to group up with people in companies and level back then. I don't personally have a 50, but it sure didn't take mountains of time. I know because those same folks were often too busy playing other MMOs with me. They usually don't play console games though or MOBAs so not much else for them to do.
The insane crew of FF14 legacy is the same band of idiots that move from MMO to MMO (much like some hardcore PvP FFA loot addicts), that are a vocal minority - they miss the days of yore, whether that is from UO, or EQ1 or DAOC or whatever old school mmo burst their cherry they look on fondly that they want to go back and put the genie back in the bottle with no DPS meters (though I had those in EQ1). We heard them all over the VG forums and they are here too, but I can guarantee those folks were not the elite in endgame FFXI, just like they weren't the elite in EQ1 or whatever game they hail from.