Having two types of lockboxes feels like a failed experiment. I think they might have designed Eureka by putting a bunch of bad ideas into a hat. I don't know how else you decide to both make the boxes more rare and also add a new even rarer box that has everything worthwhile in it.

Honestly Diadem was better. Well, I only did Diadem 2.0, but you opened lockboxes and got coins that you could just buy the pegasus mount and minion with. Making everything be like a .02% drop out of a rare lockbox is terrible.

And stuff like emotes and hair shouldn't be rare or difficult to get. I miss when they just added those things to the game and didn't make you jump through hoops for them. Now they've got to cram them into PvP or hunts or RNG boxes to try and lure people into bad content.