Even if that was not the case, that single person could run far enough to report to someone who could do something about what had happened.
Having such a group disappear all at once was something that would gain quite some attention.
Even if it happened in the chaotic era, it would still cause quite a stir.
What mattered to Cheryl was making things easier so that she would have more freedom during the chaotic era.
She had to worry about her own survival.
She could not focus on that when she had to always remain hidden.
If there were so many eyes around, then she could not possibly risk using her ability to protect herself.
She could not use her ability on a larger scale that would get her noticed, so she would have to hold back at times and keep suppressing herself.
If she used it fully, then it would become like a beacon to show where she was located.
