Some Annotations to the Reward Tracks
Assuming the final track of the regional rewards gives you a skin item and not an actual exotic weapon… you can simply right click on them and select “send to vault” or w/e it is. It will destroy the item but it will unlock the skin on your account. The down side is you lose the ability to apply it “for free” but if you are playing any reasonable amount of PvP you have transmutation charges coming out of your ears.
As far as the final reward being a piece of armour instead of the whole set, that’s a poor tool tip and it’s a known issue, it will be fixed. I agree it’s a bit surprising to see people get to the end of a track and get gloves or a helmet but after only two tiers in they can get a greatsword (which is more than 300 tokens) but honestly, that’s a problem with how generous the tiered weapon boxes are as opposed to how poorly rewarding the final tier in the track is.