I believe the philosophy was to leave it up to the service to behave sensibly, including things like have a circuit breaker, use some kind of backoff/retry, and

I believe the philosophy was to leave it up to the service to behave sensibly, including things like have a circuit breaker, use some kind of backoff/retry, and generally be robust in the face of resource contention. It kind of feels like this is putting the policy of "don't all go at once" into the cron mechanism, which is just starting jobs at desired times.