The challenges in King's Fall were intended to be difficult for average players and I feel like they did that well. This challenge is not the same and it's not just saying "do this activity that you already have this way and we'll reward you for it". For example, a reskin would be a Skolas challenge mode where you had to kill Skolas in less than 10 taint changes. This isn't like that. This is a new activity based on an old one.