As it was said multiple times before...

1) Hard mode dungeons are not hard. Once you learn the fight, positioning lag is your only real enemy.
2) Hard mode dungeons are not part of the story line. It was finished upon completing Praetorium and getting your Magitek mount.

Just think about many other players, think about the game incommon
There's already a game that makes every challenge optional and hands everything to everyone on a silver platter. It's called WoW.
FFXIV is dangerously similar to WoW as it is, it doesn't need to take on more of it's aspects.