Boon of the Hoarder not Dropping from Guardians in S3

As the Seasoners assemble their array of [wiki]Legendary Gems[/wiki] in Season Three, one Gem has been coming up missing. The [wiki]Boon of the Hoarder[/wiki]. Initially dropped only by [wiki]Greed[/wiki] in [wiki]The Vault[/wiki], some patches ago the devs changed it so any Guardian in a Greater Rift could drop the Boon, once you’d found the gem from Greed in the first place. This was helpful if you lost the gem (Hardcore) or just wanted a second or third copy, but didn’t want to have to find The Vault again.

In Season Two (almost) no one had gold issues or a need to search for The Vault, since players who had found a Boon previously just got it from GRift Guardians, same as all the other LGems. That’s not the case in Season Three, and this time you have to actually find The Vault to end your gold woes. This change was not documented in the Patch Notes and Blizzard hasn’t made any comment on it, so it’s not known if this is a bug or a feature.

Update: Testing proves Guardians will drop a Boon if you’ve already found one. So you just have to find The Vault again in S3. Thanks to Leviathan for confirming.

So, we’re back to farming Greed’s Domain again, eh? It’s not too hard in a multiplayer game; just spread out and fast explore areas (not Rifts), simply to find as many Goblins as possible, as quickly as possible. Also, has anyone seen the golden portal open up from a non-[wiki]Treasure Goblin[/wiki]? I’ve heard that all goblin types (except Rainbow) can open it, including Blood Thieves, Odious Collectors, etc, but I’ve never seen that myself. And no idea if the 3 new types of Goblins can open the Golden Portal as well?

Update: Commenters confirm finding The Vault portal via Blood Thieves. Awesome. But shouldn’t the new Gilded Baron have a bonus chance to open the portal?

Boon of the Hoarder not Dropping from Guardians in S3.f