I prefer fast withdraws and some extra safety measure like 2fa and email confirmation. Better than you needing the money now and need to wait for a manual review because of so called safety, when you could be sleeping when the hacker tries to empty your account anyways.
Wjaz you need to know is that, manual withdrawal is not about safety of users funds or some security measures that benefits the gambler, but somewhat a way that the casinos measures things and limits staffing some time some kind of financial expenses reduction, between that the most amd effective thing for a casino is to make sure that player's get their payments as fast as possible not going through alot of manual process and wasting time.