Comments of chapter undefined of Embers Ad Infinitum

I feel like there are too many problems with this plan. 1. When everyone around the team goes to the toilet at the same time, but no one from the other corner goes, won't the illusionist suspect something? 2. How did the team members protect themselves from the effect of whistling? 3. Also, we don't know what reaction Marcus will have when he reaches the toilet and everything goes dark. He should be well aware of his weakness and have some kind of backup plan to protect himself. All in all, this plan feels too rough-sewn and risky. They don't even have the exoskeletons and the robot, which saved them in Underground Bunker. I wonder whether any lingering effect from Wu Meng is still working subconsciously inside them.