I can only speak from my experiences and I can confirm I've ran this script on an unbotted and clean up 3 times, getting a fire cape twice and have not been banned so far. Who knows if that'll change in the future.
This script is safe, I've ran it twice on my main on my clean home IP and have had no troubles. I am running it once a day before I play legit or afterwards to finish a session.
Money well spent