Gearing up is like playing the slot machine. It is very very unrewarding. You look at a 390 Emissary item and you have a 365 or so item and it gives you a item you don’t need or want. How is that rewarding?
Stick a quarter in the slot machine watch numbers and icons spin around hoping it lands on the right one is not very rewarding. The RNG feel is way out of control. The Emissary loot for 390 loot should let you choose which Item you can have.