It sounds more like a series of short queues. So short, that Apple employees are sitting around twiddling their thumbs until the next queue gets long enough that they decide to start working.
If the app isn’t growing faster than infrastructure can be provisioned, these mini queues are just making people wait for no reason.
> 0 day 7 hour 31 min 42 sec
I've never seen rolling waitlists, it's kind of strange tbh