How common is it for peer reviewed papers like this to be so far off their claimed findings? “According to Google's peer-reviewed and published paper, they cla

How common is it for peer reviewed papers like this to be so far off their claimed findings? “According to Google's peer-reviewed and published paper, they claim to have a true positive rate (TPR) above 99.97% -- meaning that they will miss their own watermarks less than 1 in 10,000 times. However, my own empirical testing found that is it much closer to 1 in 20.”