Why are rings unique equipped?

[Shamirah]

Because otherwise we'll just have one ring slot.

[Alberel]

Because otherwise we'll just have one ring slot.

This.

It's to force us to use two different rings, otherwise most people would just use two of the same ring which would defeat the point of having two ring slots.

[Khalithar]

This.

It's to force us to use two different rings, otherwise most people would just use two of the same ring which would defeat the point of having two ring slots.

Which would be fine if there were two rings for each role on the vendor. Otherwise, they should just remove the unique equip on the single ring on the vendor.