It’s because Satan still likes all the stuff God likes, he just got kicked out.
So he’s got like, a super fucked up punisher/batman thing going on where he fails to acknowledge his own faults but sees all the sinners arriving in hell as deplorable, and deserving punishment.
Shitty, but you could easily tie the time-per-customer to the number of items, then standardize around item-time. Compare that to the number customers, and bob’s your uncle.