I wouldn't say its that bad but people just tend to find the one thing that gives the most and focus on that and nothing else.

In FFXI we has manaburn parties.
Then melee were boosted so we had TP burn parties.
Then Summoner burn parties.

People would spend 10 or more levels stood in the same place, killing the same thing because that was the most efficient way to get EXP even if it was boring as hell.

If you want to be level 50 as soon as possible, burn FATEs like most other people, then you too can complain about how easy it is and how you get way to much experience and level too fast.
If hitting 50 asap isn't that important to you, play the game how ever you like. Find others wanting to do the same things. Enjoy the ride.