well not really, all that means is that the surveillance company would need to augment the dataset with other features to get an accurate result. Also, I doubt they actually care about tracking you on a minute to minute basis. Knowing that you went to the pet store with 30% certainty, 4 times this year, is enough to pin you as a pet owner and send you pet-related ads. the same applies for an oppressive government. knowing that you went to a protest 5 times this month, with 30% certainly, is enough for you to get sent to a reeducation camp, or at least send some officers to surveil you and catch you in the act.