We try to do withdrawal reviews as soon as possible after the request is given. Sometimes this can even be 3-5 minutes if it's during our working hours. Sometimes it may take longer if there's nobody available at our end to do the withdrawal review. 10AM UTC is roughly half-way through our workday.
Then, as it seems, there is no actual problem regarding the time of our withdrawals. Ok, it isn't automatic, but it doesn't take so much time that it can be irritating or frustrating. Not to mention that a lot of crypto service companies (exchangers or not) say that their withdrawals are automatic, but they are not. As I said earlier, I believe that a manual check is always good as an extra safety measure.