It isn't different. You can't fail lfr. If you ever do get to ten stacks the nerf bat will fall on it hard. In practice there isn't a difference between that and getting something mailed to you above a superficial level of play (lfr bosses have been soloed this expact with 0 buff).
It comes down to what do you want out of WoW? I want a video game not a movie that is why I can't see lfr as quality content as a end game for non raiders.
Put its rewards to match its difficulty of just above normal dungeons and its fine.