It has nothing to do with human decisions. Bans always come later because it's a best way to make sure most people who get banned would never know what are they banned for exactly and what threshold there is,

The same tactics used in game development against cheaters. If it would ban you right after prompt you'll know how to avoid getting banned.

Obviously that didn't worked for you because you wasn't doing multiple attempts to bypass filters like if you were jailbreaking it by repeatedly trying different stuff.