A) this game already gives absolutely everything the casual player. Keep the upgrade items out of void ark and see what kind of post pop up.
Because having an entire raid tier of exclusivity isn't enough? What? Seriously?

You want to get more people doing Savage? Don't make them burn themselves out farming normal for loot by locking loot drops to one kill per week.

Done.

Running normal didn't burn you out. Running normal 20 times the first week because you couldn't roll for shit and *needing* that drop did.

To say anything different is lying.