Agreed on this. We used to have 45 minutes for Nightfall GMs. That made stuff like Liminality and Inverted Spire possible. Now with it cut nearly in half at 25 minutes, time runs out before the boss room and all the revives go with it. I haven't re-attempted for nearly a month ever since we ran out of time, which took the revives with it in the big open area in Liminality on GM. The timers are just too short for longer activities and missions.