I never bothered with optimizing energy usage, but I never played on those bleeding edge difficulties where it might make a difference, so cutting down micromanagement for those that want to is always a good thing. Though I wonder how it'll affect my golem usage, as I tend to power them down when not in use.
From a thematic point of view, I'm glad you can't power off settlements/cyropods, it felt a little strange saying "Hey guys, we know you're the last humans alive, but we need to turn off the life support systems now. Thank you, have a nice day." Unless like, you're actually Glados, then it might make more sense.