End game mapping + Citadels RNG

Mapping UI:

The end game mapping UI looks nice the first time, but I think it's very bad UI when you start to have many screens to drag.(not enough bookmark points)

What will happen to the performance when you do mapping after one year ?

Citadels :

I understand that you have to beat some bosses to get the keys for the pinnacle boss, but this Citadels RNG is awful.

And I do NOT want to play a trading simulator to get keys.