I remember my sister was given a task for the final phase of the recruitment process. Before that everything went very well. She got rejected with the reason b

I remember my sister was given a task for the final phase of the recruitment process. Before that everything went very well. She got rejected with the reason being that she used ChatGPT. How unserious and unthoughful approach is that? Everybody out there is using it , its the embodiment of the collective knowledge of humans. Would have it been better if she used Google, youtube etc ? People are still trying to fight the progress, but its a lost fight.