Why not stop complaining and be greatful that they tried to repair something about it.
They can never do it right after the error has occurred.
Yes maybe they should reimburse the gold.
Yes maybe they should have fixed the drop rate
Yes they should fix the energy bug on IOS (which gives an even more advantage then the drop rate at one event)
Yes we should all be greatfull if it comes out it was in our advantage (sometimes its Android sometimes its IOS), The error was with Android, and this time it was a positive one.
Try to look at it the other way, the intention was with a drop rate. Error at Android the drop rate was 100% in some cases. At the other hand, Android has (had) some bugs with MW (restarting over and over again, late start of events). Then it's because we have a bad device (and a smile with it), now it's in the advantage of Android.
Together we make it so that there won't be a fix or compensation in the future, because everything they do gives disappointment for others.