Ok, after a try to stop "overmapping", we got an EVEN MORE SUBJECTIVE rule proposal?
The map quality IS certainly increasing, those days to get the first rank is HARD. SO DAMN HARD. You did see how now first-ranked maps are CERTAINLY of averagely better than most of the first-ranked maps of 2012 ( this is retroactive ).
The work of of a BAT as now is to control a map quality, map can be ranked by BAT.
With the new system, only a few will be able to do it, and most of that few are arguably good modders, not random people.
The most you can do is asking for modder to check the quality of the map more throughly (and most do a simple "rankability" check), but hey, we're human and we can do errors.
It's actually better to have something like 24/48 hrs in which a modder can deem the map "low quality" and the mapper itself or at least 75% BATs Members from at least 12(examples: 9 from 12, 12 from 16, 15 from 20,18 from 24,21 from 28, 24 from 36, etc) integrated in the ranking process.
It was actually arleady said by peppy that BATs role would still be "checking the maps were of a good quality" too, so we don't need rule that say us that our maps should be of a good quality, especially cause it's subjective.