It already was dying. I've seen more people return since the addition of Abyssea. And, their primary reason: Abyssea. The population continues to shrink. It was shrinking prior to Abyssea. Most of my hard-core friends had left prior to Abyssea being introduced. I was playing less and less every day. After 7 years playing a game, I think I've earned the right to feel uber in a game. The only problem is that the uberness was given to all players. Not just old-timers. Personally, I don't care if it means n00bs get to be uber too. Others, would rather keep everyone relatively weak, including themselves, as long as they had a slight, very slight, advantage over newer players.
My personal opinion is that there are 2 types of players that stand-out; the perfectionists and the sloths. I'm not sure if there is anyway to keep the sloths at bay other than refusing to include them when you do things. I have 4 jobs, everything is leveled. Well, except Guard and Parry, which I put hours into each week slowly working up their levels.
So, while you might have been satisfied with the way things were, a majority were not. Personally, I feel you are howling at the wind. But, to each their own.