You spent 2 months with 2 different groups, where one group was clearly much worse than the other. In the end you put everyone back together, which is an improvment and bring things much closer to the better group but you still nerf some things of that group.
I understand increasing the prices of the daily deals but only if the dust gained from treasure caves was the same as it was for the low gold group. What this will do is create a huge dust starving for everyone and people won't be able to progress all the same.
Also, the daily deals are useless now. Who is gonna buy those? The goal of having daily deals in a game is to make them actually worth it! Maybe a player sees a good deal but doesn't have enough resources for it so he works toward that the whole day to try to buy it. Or maybe they decide to spend some money so they can afford it. If you put horrible deals there, you might as well just remove them because everyone will ignore them.