This was a nerf that came totally out of left field: nobody said anything about the ability, nor did anyone say it was too powerful. I heard it was due to stacking it being overpowered, which is understandable: you can take a group of six and get a ridiculous free bonus even on Realm 1, making farming effortless. The problem with this is that the nerf should have hit the ability to stack it (disable stacking of the ability, or make the stacked effect much smaller) rather than the base value.
What the nerf currently does is make the newbie startup time even longer and grindier, without really inhibiting your ability to sleep-farm with a team of six, as +540% (or more, if it’s actually -multiplicative-!) resources is still insane. You’ll either have to use two of your slots on them early on (which are slots you probably desperately need, especially as a new player, even on early realms) and grind 60 emblems, or just deal with the fact your ability to fund vital upgrades has been crippled.
I would suggest making the base value the same or slightly toned down (25%), and make added stacks add either 0% or 5-10%. You can still stack it, but it won’t make you get infinite resources from the first level, and it means weaker players don’t get massively hosed.
Sorry if this post seems kind of harsh! I totally agree with all of the other changes and nerfs in the patch (even topaz attunement!), but this one puzzled me, especially with how severe the nerf was. I agree that having 12x (or more) resource gain was silly, so I don’t think it should be reverted entirely, just tweaked a bit.