The addition of mission modifiers such as endless horde, fog, lights out, and the daemonhost boss seem to hold no value. Players have no incentive to interact with these mechanics as there are no additional rewards for completing them.
This seems counter intuitive when you already have mechanics like scriptures and Grimiores that have downsides but provide rewards for completing the mission with them.
TLDR; Add rewards for completing missions that have additional downsides so players interact with the mechanics.