To solve BF-33850, we should skip the monotonicity check if the percentage of shard key updates is high since they overwrite the recordId order in the shard key index.

To solve BF-30851, we should skip the size of length of "mostCommonValues", if the workload is running in a suite that performs unclean shutdown since it causes collStats to return wrong number of docs (or even that the collection is empty) and cardinality and frequency calculation for unique shard key depends on the metrics returned by collStats.