EMH is a perk available only to resort hotel guest every day of their stay to get into DL or DCA on alternating days an hour early
MM is available for one single day to anyone that purchases 3+ day parkhopper ticket in advance and is only for DL park on select days
So on DCA days, park is open early to only EMH
On DL Days, park is open early to both EMH and MM
So if you are both a resort guest AND have a 3+ day advance ticket, the MM perk is irrelevant since you have access to EMH every day.
Why not just call it all Magic Mornings?...The only reason there is a distinction in names is that DCA is not open to MM...only resort hotel guests that get the EMH.