No argument... the idea of more than "One Real Park" is very good. People are not generally foolish - they usually GET where the "Real Park" is, and go there.
However... WDW (in theory) HAS 4 Parks. So what happened, and how can this be fixed? I personally believe the answer lies in making everything other than the MK into a "REAL PARK". The item formally known as HS is getting there. EPCOT is a walking disaster. AK? Well, maybe... but Pandora is a pretty small chunk of that land.... Dear wife and I just don't go there.
So? Everyone goes to the MK. Just me.... it sort of looks like 1971 all over again. Due to neglect
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All personal opinion - I'm not necessarily right, no one else is necessarily wrong.