Savage might be more challenging than most of the other content in the game but it is still casual content.
You don't have to no-life raiding to get through all 4 bosses before the next 4 are released. You just need a few hours a week along with a solid grasp of your job and ability to recognize/react to fight mechanics.
The best players will clear the content faster, of course, but they're not the only ones capable of clearing it while it's current.