The resort area will have a 90% power cap for the sake of the tourists. It's a safety thing.

But the Malnosso operate at a more relaxed 50% in their facility. After all, some of them are pretty super too and need access to their abilities. It should be noted that a lot of the doors, walls, and so forth are heavily reinforced. Some of the sensitive areas may be protected by Shift barriers that have be passed through the old fashioned way (by actually using the feather system).