MGM lacks an onramp from Osceola Pkway

Have you ever come up Osceola parkway from the west, heading east? (You would if you took the back way on to property). Coming in that direction, there is no simple way to access MGM. You have to rejoin World Drive and then exit for the Epcot Hotels, and get in to the MGM back entrance.

That's fine as far as it goes, but in the process of all that, you do a flyover over the normal MGM entrance. It would be simplicity itself to add a second lane that joins this MGM entry area. Why isn't there one??