If they dont store every single movement each milisecond then pathprecision and your idea is stupid and useless.
You either believe they do store every movement and think pathprecision helps or you dont.
You don't have to store shit to do a random spot check and a GM watches your bot for a few mins to see it doing the exact same paths over and over. Are they doing this? Who knows. But it's a possibility... a number of factors could flag your account and then they spot check it and watch it for a bit. Since all the bans are somewhat spaced out and random it makes the most sense.