I believe this is a matter of communication.
Bad Communication
Community: “Is Heart of Rage now dropping from vault battles?”
IP2: “Yes, it’s a very rare drop.”
Community: “We’ve run thousands of Vault battles, not a single Heart of Rage found, is it **really** in the drop table?”
IP2: “We’ve checked once more, good news, everything is working as intended.”
Community: “We’ve wasted another few thousand vault keys, zero Heart of Rage!”
IP2: “We’ve taken your feedback into account and raised the drop rate from an undisclosed number to an undisclosed number.”
Community: *Facepalm*
Good Communication
Community: “Is Heart of Rage now dropping from vault battles?”
IP2: “Yes, it has a 1:10000 chance to drop.”
Community: “Sorry, we couldn’t get drunk enough to even accidentally using vault keys at this rate.”
IP2: “Uh, the dev configuring the drop table thought vault keys were as abundant as gold keys, we’ve upped the drop rate to a much more reasonable 1:50 chance.”
Community: “Thank you.”
Note the major difference here.
In the first example players were led to believe they had a chance of obtaining Heart of Rage. This wasn’t really the case, everybody wasted the resources they had been farming for months on a wild goose chase doomed to be unsuccessful. The wild goose chase got changed in some way, players are still left to figure out if the goose really exists in reasonable numbers. Once they farm up the required resources a second time.
In the second example players were able to tell they were being sent on a wild goose chase and didn’t waste the resources they had been farming for months. They were also able to tell how much the wild goose chase got changed into a fair hunt prior to committing.
Still, thank you for pushing hard to improve the drop rate. I hope you understand why your effort ended up being much less appreciated than it could have been.