Can someone explain the logic of this...
Added to the ascended mats, its just another inv filler so you are closer to buying more bank/inv space.
Probably the same reason they can not adjust the wvw achievement. Must be difficult for A-net to put in something that checks previous achievements or changes achievement already earn. That item will enable everyone with the meta to get the correct rewards at the end. Also you should have already put your wvw key in your bank by now.
“Quoth the raven nevermore”
Platinum Scout: 300% MF
Probably the same reason they can not adjust the wvw achievement. Must be difficult for A-net to put in something that checks previous achievements or changes achievement already earn. That item will enable everyone with the meta to get the correct rewards at the end. Also you should have already put your wvw key in your bank by now.
But the key so clearly states the chests are only sent to people who do complete the meta — so they are already checking past achievements.
Also they have done retroactive meta rewards before, the original achievements for SAB (April edition) had a skin retroactively added to it.