Sorry it's me reading the start and the end of a thread skipping few message in the middle, and you were in the middle =).
Anyhow, for the MF label I had the feeling it was a remnant of the current system, and also was there for tinkering perspective on blizzard part.
Also I find it unconsistent from blizzard to roll out 17 attributes for 4 categories specifically if a cap if forced on 3 of these categories.
Since that means cap would go from 50×4 to 40×5 for the adventure category.
it's far from impossible yet it doesn't feel right to me.