I have no motivation to play end game right now. I have no motivation to do end game grinding ever. It's not the part that I enjoy about MMO's. It's not what keeps me playing, and never will be. What keeps me playing are the quests, side quests, storylines, crafting especially. The crafting storylines didn't require hard-core grindiness and I enjoyed every single one of them. I still haven't completed the majority of the side quests already in the game. 2.1 will bring even more stuff to keep me happy. Daily beastmen quests, treasure maps, housing, crafting furniture for housing. End game is not necessary to keep me playing this game. Keeping the storyline about Bahamut and Louisoix out of reach behind content I may never be able to beat is more likely to cause me to stop playing. Besides, the majority of end gamers don't want me in their content anyway, which is becoming increasingly clear with every response.
I think this is a fundamental difference between our play styles that makes people misunderstand my motivations. Gear and end game content does not and will not keep me playing, ever. FFXI lost my subscription after more than 7 years when it created a skill and gear barrier against me experiencing the new content (Delve weapons anyone?). A fleshed out world with lots of *different* content keeps me playing. And yes, that includes the storyline.
EDIT: I do not want the existing content nerfed for everyone. I want an alternative. Like AvonRekaes said above, we get to fight Titan in story mode, and then there's hard mode for gear grinding. Is that bad? Is the story mode's 'nerfed' content disrupting the game for you?
Also, alright, I'll admit it, I want the Bahamut storyline handed to me. I've waited over a year to find out what happened after the End of an Era video. I've gone through the ridiculous story about the primals, whom I've already beaten once in 1.23. I've gone and fetched cheese from a dragon, I've re-done the class quests, I've leveled a whole new class/job, I've opened the armory system again, I've opened the new Arcanist class, I've learned how to craft things all over again with this new system, I've explored the reborn realm. I want the Bahamut storyline. Walling it off behind content I may not ever get to beat does not motivate me to keep playing.