I think the discussion should be about how this map got approved even though it only had around 4 minutes of drain time. The rules clearly state:
Approved Category is only for Marathon maps. Long maps with over 6 minutes of draining time fit the Approval category. Only then they are allowed to be single difficulty mapsets. If they are below 6 minutes of draining time, a full difficulty spread is needed and the map will have to be ranked instead.How the BATs let this one rule slip past them is past me. I'm sure the rule wasn't just "recently" made after this map was approved. This rule has been standing for awhile if I'm correct.